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WO2021015493A1 - Dispositif électronique destiné à la réception d'énergie sans fil, et procédé de fonctionnement associé - Google Patents

Dispositif électronique destiné à la réception d'énergie sans fil, et procédé de fonctionnement associé Download PDF

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Publication number
WO2021015493A1
WO2021015493A1 PCT/KR2020/009410 KR2020009410W WO2021015493A1 WO 2021015493 A1 WO2021015493 A1 WO 2021015493A1 KR 2020009410 W KR2020009410 W KR 2020009410W WO 2021015493 A1 WO2021015493 A1 WO 2021015493A1
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WO
WIPO (PCT)
Prior art keywords
wireless power
value
electronic device
power transmission
transmission device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2020/009410
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English (en)
Korean (ko)
Inventor
정명균
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of WO2021015493A1 publication Critical patent/WO2021015493A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters

Definitions

  • Various embodiments of the present disclosure relate to an electronic device for wirelessly receiving power and a method of operating the same.
  • the magnetic induction or magnetic resonance method is advantageous for charging an electronic device located relatively close to the wireless power transmission device.
  • the electromagnetic wave method is more advantageous for long-distance power transmission up to several meters in magnetic induction or magnetic resonance method.
  • the electromagnetic wave method is mainly used for long-distance power transmission, and power can be delivered most efficiently by grasping the exact location of a power receiver in a long distance.
  • the apparatus for transmitting power wirelessly may perform a foreign object detection (FOD) operation and may stop a wireless charging operation when a foreign substance is detected.
  • the apparatus for transmitting power wirelessly receives the amount of received power in which the offset value for the foreign matter detection operation is reflected from the charging target device, and may perform the foreign matter detection operation based on this.
  • FOD foreign object detection
  • the electronic device When a wireless charging operation is performed while a foreign substance is placed between the wireless power transmission device and the charging target device (for example, an abnormal state), the electronic device is a wireless power transmission device to allow the wireless power transmission device to successfully detect the foreign substance. It may not be possible to provide the amount of received power in which an appropriate offset value is reflected.
  • the communication state between the wireless power transmission device and the charging target device is not smooth due to foreign substances, so the identification information of the wireless power transmission device cannot be transmitted to the charging target device, or the wireless power transmission device is not registered ( For example: because the device does not have identification information or has unregistered identification information), the electronic device fails to check the offset value for the wireless power transmission device to successfully detect the foreign substance, and this results in successful foreign substance detection. Accordingly, the interruption of the wireless charging operation may not be caused. Accordingly, various problems may occur due to the continuous wireless charging operation in the presence of foreign substances (eg, overheating).
  • the electronic device may check the characteristic value of the wireless power transmission device, and provide the amount of the received power reflecting the corresponding offset value to the wireless power transmission device so that the foreign matter detection operation is successfully performed. .
  • the electronic device may manage and update the offset value for each group of the wireless power transmission device, thereby improving a success rate and efficiency of a foreign matter detection operation.
  • it includes at least one coil, at least one sensor, and at least one processor, wherein the at least one processor requests identification information of the wireless power transmission device from the wireless power transmission device, and the When the identification information is not received from the wireless power transmission device, check a characteristic value of the wireless power transmission device based on the at least one sensor, and check the wireless power transmission device corresponding to the identified characteristic value, , Checking the first value for the foreign matter detection operation corresponding to the confirmed wireless power transmission device, the information on the amount of wireless power received from the wireless power transmission device in which the checked first value is reflected, the wireless An electronic device configured to control the at least one communication circuit to transmit to a power transmission device may be provided.
  • a memory, at least one power receiving coil, and at least one processor are included, wherein the at least one processor includes a first power transmission device from the wireless power transmission apparatus using the at least one power receiving coil. Receives wireless power, compares a reference value related to the second wireless power received in a normal state previously stored in the memory and a value related to the received first wireless power, and based on the comparison result, a foreign substance in the memory. The at least one to adjust a first value corresponding to the first wireless power previously stored for a detection operation, and to transmit information on the magnitude of the first wireless power reflecting the adjusted first value to the wireless power transmission device.
  • An electronic device, set to control one communication circuit may be provided.
  • an electronic device includes a memory, at least one power receiving coil, and at least one processor, wherein the at least one processor uses the at least one power receiving coil to provide wireless power.
  • the electronic device is controlled to receive the first wireless power from the transmitting device, and the first temperature value of the first part and the second temperature value of the second part are determined according to the wireless power received in a normal state previously stored in the memory.
  • a first difference value is compared with a second difference value between a third temperature value of the first part and a fourth temperature value of the second part by reception of the first wireless power, and a second difference value as a result of the comparison is
  • the first difference value is exceeded, the first value for the foreign matter detection operation is adjusted, and the information on the magnitude of the first wireless power reflecting the adjusted first value is transmitted to the wireless power transmission device.
  • An electronic device set to control at least one communication circuit, may be provided.
  • an electronic device that checks the characteristic value of the wireless power transmission device and provides the amount of received power reflecting the corresponding offset value to the wireless power transmission device so that the foreign matter detection operation is successfully performed.
  • An electronic device may be provided that manages and updates an offset value according to various embodiments for each group of wireless power transmission devices to improve a success rate and efficiency of a foreign matter detection operation.
  • FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments.
  • FIG. 2 is a block diagram of an apparatus for transmitting power wirelessly and an electronic device according to various embodiments.
  • 3A illustrates a wireless power transmission apparatus and an electronic device according to various embodiments.
  • 3B illustrates a wireless power transmission apparatus and an electronic device according to various embodiments.
  • 3C is a detailed block diagram of a power transmission circuit and a power reception circuit according to various embodiments.
  • FIG. 4 is a flowchart illustrating an example of an operation for checking an offset value of an electronic device and causing a foreign object detection operation of a wireless power transmission device according to various embodiments of the present disclosure.
  • FIG. 5 is a diagram illustrating an example of an operation for checking an offset value of an electronic device and causing a foreign object detection operation of a wireless power transmission device according to various embodiments of the present disclosure.
  • FIG. 6 is a flowchart illustrating an example of an operation of an electronic device and a wireless power transmission device according to various embodiments of the present disclosure.
  • FIG. 7 is a diagram illustrating an example of an operation of an electronic device and a wireless power transmission device according to various embodiments of the present disclosure.
  • FIG. 8 is a flowchart illustrating an example of an operation of checking a group including a wireless power transmission device of an electronic device and providing a value assigned to the identified group, according to various embodiments of the present disclosure.
  • FIG. 9 is a diagram for describing an example of an operation of checking a group including a wireless power transmission device of an electronic device and providing a value assigned to the identified group, according to various embodiments of the present disclosure.
  • FIG. 10 is a flowchart illustrating an example of an operation of adjusting a default value for a foreign substance detection operation of an electronic device to another value according to various embodiments of the present disclosure.
  • 11 is a diagram for describing an example of an operation of adjusting a default value for a foreign substance detection operation of an electronic device to another value according to various embodiments of the present disclosure.
  • FIG. 12 is a flowchart illustrating an example of an operation of checking an abnormal state of an electronic device according to various embodiments of the present disclosure.
  • FIG. 13 is a diagram for describing an example of an operation of checking an abnormal state of an electronic device according to various embodiments of the present disclosure.
  • FIG. 14 is a flowchart illustrating an example of an operation of comparing a value related to wireless power currently received by an electronic device and a value related to wireless power received in a normal state, according to various embodiments.
  • 15 is a diagram for describing an example of an operation of comparing a value related to a wireless power currently received by an electronic device and a value related to a wireless power received in a normal state according to various embodiments of the present disclosure.
  • 16 is a diagram for explaining an example of an operation of updating a first value for each group of an electronic device according to various embodiments of the present disclosure.
  • 17 is a diagram for explaining an example of an operation of displaying a screen for a foreign substance check request of an electronic device according to various embodiments of the present disclosure.
  • FIG. 18 is a flowchart illustrating an example of an operation of comparing a temperature value according to a wireless power currently received by an electronic device and a temperature value according to the wireless power received in a normal state, according to various embodiments.
  • FIG. 19 is a diagram for describing an example of an operation of comparing a temperature value based on wireless power currently received by an electronic device with a temperature value based on wireless power received in a normal state.
  • FIG. 1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments.
  • the electronic device 101 communicates with the electronic device 102 through a first network 198 (for example, a short-range wireless communication network), or a second network 199 It is possible to communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network).
  • the electronic device 101 may communicate with the electronic device 104 through the server 108.
  • the electronic device 101 includes a processor 120, a memory 130, an input device 150, an audio output device 155, a display device 160, an audio module 170, and a sensor module ( 176, interface 177, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196, or antenna module 197 ) Can be included.
  • a sensor module 176, interface 177, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196, or antenna module 197
  • at least one of these components may be omitted or one or more other components may be added to the electronic device 101.
  • some of these components may be implemented as one integrated circuit.
  • the sensor module 176 eg, a fingerprint sensor, an iris sensor, or an illuminance sensor
  • the display device 160 eg, a display.
  • the processor 120 for example, executes software (eg, a program 140) to implement at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and can perform various data processing or operations. According to an embodiment, as at least part of data processing or operation, the processor 120 may store commands or data received from other components (eg, the sensor module 176 or the communication module 190) to the volatile memory 132. The command or data stored in the volatile memory 132 may be processed, and result data may be stored in the nonvolatile memory 134.
  • software eg, a program 140
  • the processor 120 may store commands or data received from other components (eg, the sensor module 176 or the communication module 190) to the volatile memory 132.
  • the command or data stored in the volatile memory 132 may be processed, and result data may be stored in the nonvolatile memory 134.
  • the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphic processing unit, an image signal processor) that can be operated independently or together with the main processor 121 (eg, a central processing unit or an application processor). , A sensor hub processor, or a communication processor). Additionally or alternatively, the coprocessor 123 may be set to use less power than the main processor 121 or to be specialized for a designated function. The secondary processor 123 may be implemented separately from the main processor 121 or as a part thereof.
  • main processor 121 eg, a central processing unit or an application processor
  • a secondary processor 123 eg, a graphic processing unit, an image signal processor
  • the coprocessor 123 may be set to use less power than the main processor 121 or to be specialized for a designated function.
  • the secondary processor 123 may be implemented separately from the main processor 121 or as a part thereof.
  • the coprocessor 123 is, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, an application is executed). ) While in the state, together with the main processor 121, at least one of the components of the electronic device 101 (for example, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the functions or states related to. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have.
  • an image signal processor or a communication processor may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have.
  • the memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176).
  • the data may include, for example, software (eg, the program 140) and input data or output data for commands related thereto.
  • the memory 130 may include a volatile memory 132 or a nonvolatile memory 134.
  • the program 140 may be stored as software in the memory 130, and may include, for example, an operating system 142, middleware 144, or an application 146.
  • the input device 150 may receive a command or data to be used for a component of the electronic device 101 (eg, the processor 120) from an outside (eg, a user) of the electronic device 101.
  • the input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).
  • the sound output device 155 may output an sound signal to the outside of the electronic device 101.
  • the sound output device 155 may include, for example, a speaker or a receiver.
  • the speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.
  • the display device 160 may visually provide information to the outside of the electronic device 101 (eg, a user).
  • the display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device.
  • the display device 160 may include a touch circuitry set to sense a touch, or a sensor circuit (eg, a pressure sensor) set to measure the strength of a force generated by the touch. have.
  • the audio module 170 may convert sound into an electric signal or, conversely, convert an electric signal into sound. According to an embodiment, the audio module 170 acquires sound through the input device 150, the sound output device 155, or an external electronic device (for example, an external electronic device directly or wirelessly connected to the electronic device 101). Sound may be output through the electronic device 102) (for example, a speaker or headphones).
  • the sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101, or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do.
  • the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.
  • the interface 177 may support one or more designated protocols that may be used for the electronic device 101 to connect directly or wirelessly with an external electronic device (eg, the electronic device 102 ).
  • the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
  • HDMI high definition multimedia interface
  • USB universal serial bus
  • SD card interface Secure Digital Card
  • the connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ).
  • the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
  • the haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that a user can perceive through a tactile or motor sense.
  • the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
  • the camera module 180 may capture a still image and a video.
  • the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.
  • the power management module 188 may manage power supplied to the electronic device 101.
  • the power management module 388 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).
  • PMIC power management integrated circuit
  • the battery 189 may supply power to at least one component of the electronic device 101.
  • the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.
  • the communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, electronic device 102, electronic device 104, or server 108). It is possible to support establishment and communication through the established communication channel.
  • the communication module 190 operates independently of the processor 120 (eg, an application processor), and may include one or more communication processors that support direct (eg, wired) communication or wireless communication.
  • the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg : A LAN (local area network) communication module, or a power line communication module) may be included.
  • a corresponding communication module is a first network 198 (for example, a short-range communication network such as Bluetooth, WiFi direct or IrDA (infrared data association)) or a second network 199 (for example, a cellular network, the Internet, or It can communicate with external electronic devices through a computer network (for example, a telecommunication network such as a LAN or WAN).
  • the wireless communication module 192 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 in a communication network such as the first network 198 or the second network 199.
  • subscriber information e.g., International Mobile Subscriber Identifier (IMSI)
  • IMSI International Mobile Subscriber Identifier
  • the antenna module 197 may transmit a signal or power to the outside (eg, an external electronic device) or receive from the outside.
  • the antenna module may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern.
  • the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is, for example, provided by the communication module 190 from the plurality of antennas. Can be chosen.
  • the signal or power may be transmitted or received between the communication module 190 and an external electronic device through the at least one selected antenna.
  • other components eg, RFIC
  • other than the radiator may be additionally formed as part of the antenna module 197.
  • At least some of the components are connected to each other through a communication method (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI))) between peripheral devices and signals ( E.g. commands or data) can be exchanged with each other.
  • a communication method e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
  • GPIO general purpose input and output
  • SPI serial peripheral interface
  • MIPI mobile industry processor interface
  • commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199.
  • Each of the electronic devices 102 and 104 may be a device of the same or different type as the electronic device 101.
  • all or part of the operations executed by the electronic device 101 may be executed by one or more of the external electronic devices 102, 104, or 108.
  • the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device 101 does not execute the function or service by itself.
  • One or more external electronic devices receiving the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit the execution result to the electronic device 101.
  • the electronic device 101 may process the result as it is or additionally and provide it as at least part of a response to the request.
  • cloud computing, distributed computing, or client-server computing technology Can be used.
  • Electronic devices may be devices of various types.
  • the electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance.
  • a portable communication device eg, a smart phone
  • a computer device e.g., a smart phone
  • a portable multimedia device e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a wearable device e.g., a portable medical device
  • a home appliance e.g., a portable medical device
  • phrases such as “at least one of, B, or C” may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof.
  • Terms such as “first”, “second”, or “first” or “second” may be used simply to distinguish the component from other corresponding components, and the components may be referred to in other aspects (eg, importance or Order) is not limited.
  • Some (eg, a first) component is referred to as “coupled” or “connected” with or without the terms “functionally” or “communicatively” to another (eg, second) component. When mentioned, it means that any of the above components can be connected to the other components directly (eg by wire), wirelessly, or via a third component.
  • module used in this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic blocks, parts, or circuits.
  • the module may be an integrally configured component or a minimum unit of the component or a part thereof that performs one or more functions.
  • the module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (for example, the program 140) including them.
  • the processor eg, the processor 120 of the device (eg, the electronic device 101) may call and execute at least one command among one or more commands stored from a storage medium. This makes it possible for the device to be operated to perform at least one function according to the at least one command invoked.
  • the one or more instructions may include code generated by a compiler or code executable by an interpreter.
  • a storage medium that can be read by a device may be provided in the form of a non-transitory storage medium.
  • non-transient only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term refers to a case where data is semi-permanently stored It does not distinguish between temporary storage cases.
  • a signal e.g., electromagnetic waves
  • a method according to various embodiments disclosed in the present document may be provided by being included in a computer program product.
  • Computer program products can be traded between sellers and buyers as commodities.
  • Computer program products are distributed in the form of a device-readable storage medium (e.g. compact disc read only memory (CD-ROM)), or through an application store (e.g. Play StoreTM) or two user devices (e.g. It can be distributed (e.g., downloaded or uploaded) directly between, e.g. smartphones).
  • a device e.g. compact disc read only memory (CD-ROM)
  • an application store e.g. Play StoreTM
  • two user devices e.g. It can be distributed (e.g., downloaded or uploaded) directly between, e.g. smartphones).
  • at least a portion of the computer program product may be temporarily stored or temporarily generated in a storage medium that can be read by a device such as a server of a manufacturer, a server of an application store, or a memory of a relay server.
  • each component (eg, module or program) of the above-described components may include a singular number or a plurality of entities.
  • one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added.
  • a plurality of components eg, a module or a program
  • the integrated component may perform one or more functions of each component of the plurality of components in the same or similar to that performed by the corresponding component among the plurality of components prior to the integration. .
  • operations performed by a module, program, or other component are sequentially, parallel, repeatedly, or heuristically executed, or one or more of the above operations are executed in a different order or omitted. Or one or more other actions may be added.
  • the operation of the electronic device 101 described below is described as being controlled so that the processor 120 performs a corresponding operation using at least one component of the electronic device 101, but may not be limited thereto.
  • instructions or computer codes that cause an operation of the electronic device 101 to be described below may be stored in the memory 130.
  • the stored instruction or computer code may cause the processor 120 to process a corresponding operation using at least one component included in the electronic device 101.
  • the electronic device described below may be a wireless power receiving device that receives wireless power from a wireless power transmitting device.
  • FIG. 2 is a block diagram of an apparatus for transmitting power wirelessly and an electronic device according to various embodiments.
  • the apparatus 200 for transmitting power wirelessly may wirelessly transmit power 261 to the electronic device 250.
  • the electronic device 250 may refer to the electronic device 101 described above.
  • the electronic device 250 described below may be interpreted as a wireless power receiving device receiving wireless power from the wireless power transmitting device 200.
  • the wireless power transmission device 200 may transmit power 261 to the electronic device 250 according to various charging methods.
  • the apparatus 200 for transmitting power may transmit the power 261 according to an induction method.
  • the wireless power transmission device 200 may include, for example, a power source, a DC-AC conversion circuit, an amplifying circuit, an impedance matching circuit, at least one capacitor, and at least one It may include a coil, a communication modem circuit, and the like. At least one capacitor may form a resonance circuit together with at least one coil.
  • the wireless power transmission apparatus 200 may be implemented in a manner defined in a wireless power consortium (WPC) standard (or Qi standard).
  • the electronic device 250 wirelessly receiving power may include a receiving coil, at least one capacitor, an impedance matching circuit, a rectifier, a DC-DC converter, a charger, a battery, a communication modem circuit, and the like.
  • the apparatus 200 for transmitting power wirelessly may transmit power 261 according to a resonance method.
  • the wireless power transmission device 200 includes, for example, a power source, a DC-AC conversion circuit, an amplifying circuit, an impedance matching circuit, at least one capacitor, at least one coil, an out-band communication circuit ( Example: Bluetooth low energy (BLE) communication circuit). At least one capacitor and at least one coil may constitute a resonance circuit.
  • the apparatus 200 for transmitting power wirelessly may be implemented in a manner defined in the Alliance for Wireless Power (A4WP) standard (or air fuel alliance (AFA) standard).
  • A4WP Alliance for Wireless Power
  • AFA air fuel alliance
  • the apparatus 200 for transmitting power wirelessly may include a coil capable of generating an induced magnetic field when a current flows according to a resonance method or an induction method.
  • the process of generating the induced magnetic field by the wireless power transmission apparatus 200 may be expressed as that the wireless power transmission apparatus 200 transmits the power 261 wirelessly.
  • the electronic device 250 may include a coil in which induced electromotive force is generated by a magnetic field whose size changes according to time formed around it.
  • the process of generating the induced electromotive force through the coil may be expressed as the electronic device 250 wirelessly receiving the power 261.
  • the electronic device 250 may include a receiving coil, at least one capacitor, an impedance matching circuit, a rectifier, a DC-DC converter, a charger, a battery, an out-band communication circuit, and the like.
  • the apparatus 200 for transmitting power wirelessly may transmit the power 261 according to an RF method.
  • the wireless power transmission apparatus 200 includes, for example, a power source, a DC-AC conversion circuit, a plurality of antennas, a plurality of amplifiers corresponding to a plurality of antennas, a plurality of amplifiers corresponding to a plurality of antennas. It may include a phase shifter, an out-band communication circuit (eg, a Bluetooth low energy (BLE) communication circuit), and the like.
  • the wireless power transmission device 200 may form an RF wave based on the location of the electronic device 250.
  • the apparatus 200 for transmitting power wirelessly may control at least one of a phase shifter or an amplifier to form a beam-formed RF wave.
  • the apparatus 200 for transmitting power wirelessly may include a coil capable of generating an induced magnetic field when a current flows according to a resonance method or an induction method.
  • the process of generating the induced magnetic field by the wireless power transmission apparatus 200 may be expressed as that the wireless power transmission apparatus 200 transmits the power 261 wirelessly.
  • the wireless power transmission device 200 may form a beam-formed RF wave according to an RF method, and this process may be expressed as the wireless power transmission device 200 transmits the power 261 wirelessly. .
  • the electronic device 250 may include a coil in which induced electromotive force is generated by a magnetic field whose size changes according to time formed around it.
  • the electronic device 250 may pick up an RF wave formed around it. The above-described processes may be expressed as the electronic device 250 wirelessly receiving the power 261.
  • the wireless power transmission apparatus 200 may communicate with the electronic device 250.
  • the apparatus 200 for transmitting power wirelessly may communicate with the electronic device 250 according to an in-band method.
  • the wireless power transmission apparatus 200 or the electronic device 250 may change the load (or impedance) of data to be transmitted according to, for example, an on/off keying modulation method.
  • the wireless power transmission device 200 or the electronic device 250 may determine the data transmitted from the counterpart device by measuring a load change (or impedance change) based on a change in the amount of current, voltage, or power of the coil. have.
  • the wireless power transmission device 200 may communicate with the electronic device 250 according to an out-band method.
  • the wireless power transmission device 200 or the electronic device 250 may transmit and receive data using a communication circuit (eg, a BLE communication module) separately provided with a coil or patch antenna.
  • a communication circuit eg, a BLE communication module
  • the wireless power transmission device 200 or the electronic device 250 performing a specific operation is a variety of hardware included in the wireless power transmission device 200 or the electronic device 250, for example, a processor. It may mean that a control circuit, a coil, or a patch antenna performs a specific operation. Alternatively, when the wireless power transmission device 200 or the electronic device 250 performs a specific operation, it may mean that the processor controls other hardware to perform a specific operation. Alternatively, when the wireless power transmission device 200 or the electronic device 250 performs a specific operation, a specific operation that has been stored in a storage circuit (eg, memory) of the wireless power transmission device 200 or the electronic device 250 is performed. As an instruction to be executed is executed, it may mean causing a processor or other hardware to perform a specific operation.
  • a storage circuit eg, memory
  • FIG. 3A illustrates a wireless power transmission apparatus 200 and an electronic device 250 according to various embodiments.
  • O1 to O5 are points at which the electronic device 250 to be described later measures the output power Pout, and the measurement of the output power Pout will be described later in detail.
  • a wireless power transmission apparatus 200 includes a control circuit 202, a communication circuit 203, a memory 205, a power source 206, or a power transmission circuit 209. ) May include at least one of.
  • the electronic device 250 may include at least one of a charger, a control circuit 252, a communication circuit 253, a battery 254, a memory 256, or a power receiving circuit 259. It may include.
  • the power transmission circuit 209 may wirelessly transmit the power 261 according to at least one of an induction method, a resonance method, and an electromagnetic wave method. Detailed configurations of the power transmission circuit 209 and the power reception circuit 259 will be described in more detail with reference to FIGS. 3A, 3B and 3C.
  • the control circuit 202 can control overall operation of the wireless power transmission apparatus 200. For example, the control circuit 202 determines whether to transmit the power 261, controls the magnitude of the power 261, or at least one function of the electronic device 250 (e.g., charging Start or stop charging) can also be controlled.
  • the control circuit 202 or the control circuit 252 is a general-purpose processor such as a CPU, a mini computer, a microprocessor, a micro controlling unit (MCU), a field programmable gate array (FPGA), and other various circuits that can perform operations. It can be implemented, and there is no limit to its kind.
  • the apparatus 200 for transmitting power wirelessly may be implemented as a device using out-band communication.
  • the control circuit 202 of the wireless power transmission apparatus 200 may transmit/receive the electronic device 250 and the data 262 through the communication circuit 203 as shown in FIG. 3A.
  • the data can be used to control wireless power transmission/reception.
  • the communication circuit 203 and the communication circuit 253 may be implemented as, for example, an out-band communication type communication circuit (eg, a Bluetooth communication module or an NFC communication module).
  • the electronic device 200 may also be implemented as a device using out-band communication.
  • the control circuit 252 of the electronic device 250 and the wireless power transmission device 200 and the data 262 may be transmitted and received through the communication circuit 253 as shown in FIG. 3A.
  • the apparatus 200 for transmitting power wirelessly may be implemented as a device using an in-band communication method.
  • a separate communication circuit 203 is not provided, and the wireless power transmission device 200 is directly connected to the coil of the power transmission circuit 209 or It may include a switch connected through another element, and a dummy load (eg, a dummy resistor or a dummy capacitor) connected directly to the coil through the switch or through another element.
  • the control circuit 203 of the wireless power transmission device 200 checks the data 262 based on a change in the voltage or current applied to the coil in the power transmission circuit 209 detected during the on/off process of the switch. I can.
  • the electronic device 250 may also be implemented as a device using an in-band communication method.
  • a separate communication circuit 253 is not provided, and the electronic device 250 directly or other elements to the coil of the power receiving circuit 259
  • a switch connected through and a dummy load eg, a dummy resistor or a dummy capacitor
  • the control circuit 252 of the electronic device 250 is similar to the above-described wireless power transmission device 200, the voltage or current applied to the coil in the power receiving circuit 259 detected during the on/off process of the switch.
  • the data 262 can be checked based on the change of.
  • the power receiving circuit 259 may wirelessly receive power from the power transmission circuit 209 according to at least one of an induction method, a resonance method, and an electromagnetic wave method.
  • the power receiving circuit 259 may perform power processing of rectifying the power of the received AC waveform into a DC waveform, converting a voltage, or regulating power.
  • the charger 251 may charge the battery 254 using the received regulated power (eg, DC power).
  • the charger 251 may adjust at least one of a voltage or a current of the received power and transmit it to the battery 254.
  • the charger 251 may be an IF power management integrated circuit (PMIC).
  • PMIC power management integrated circuit
  • the battery 254 can store power and transfer it to other hardware.
  • a power management integrated circuit (PMIC) (not shown) may receive power from the power receiving circuit 259 and transmit it to other hardware, or may receive power from the battery 254 and transmit it to other hardware. .
  • the control circuit 252 may control the overall operation of the electronic device 250.
  • the memory 256 may store instructions for performing an overall operation of the electronic device 250.
  • instructions for performing the overall operation of the wireless power transmission device 200 may be stored, or a relationship between the information obtained through the communication circuit 203 and the amount of power to be transmitted may be stored.
  • a lookup table or equation information about a relationship between the obtained information and the amount of power to be transmitted may be stored.
  • the memory 205 or the memory 256 may be implemented in various forms such as read only memory (ROM), random access memory (RAM), or flash memory, and there is no limitation on the implementation form.
  • 3C is a detailed block diagram of a power transmission circuit and a power reception circuit according to various embodiments.
  • the power transmission circuit 209 may include a power adapter 211, a power generation circuit 212, a coil 213, and a matching circuit 214.
  • the power adapter 211 may receive power from the power source 206 and provide it to the power generation circuit 212.
  • the adapter 211 may be, for example, a power interface, and may not be included in the wireless power transmission apparatus 200 depending on implementation.
  • the power generation circuit 212 may convert the received power into an AC waveform, for example, and/or amplify and transfer the received power to the coil 213.
  • the frequency of the AC waveform may be set to 100 to 205 kHz or 6.78 MHz or the like according to the standard, but there is no limitation.
  • the power generation circuit 212 may also include an inverter.
  • the inverter may be a full-bridge inverter or a half-bridge inverter, but the type is not limited.
  • an induced magnetic field that changes in size with time may be formed from the coil 213, and accordingly, power may be transmitted wirelessly.
  • at least one capacitor constituting the resonance circuit together with the coil 213 may be further included in the power transmission circuit 209.
  • the matching circuit 214 changes at least one of the capacitance or reactance of the circuit connected to the coil 213 according to the control of the control circuit 202, so that the power transmission circuit 209 and the power reception circuit 259 Impedance matching can be made.
  • Induction electromotive force may be generated in the coil 221 of the power receiving circuit 259 by a magnetic field that changes in size according to the time formed around it, and accordingly, the power receiving circuit 159 may wirelessly receive power. .
  • the rectifying circuit 222 may rectify the power of the received AC waveform.
  • the converting circuit 223 may adjust the voltage of the rectified power and transmit it to the PMIC or charger.
  • the power receiving circuit 259 may further include a regulator, or the converting circuit 223 may be replaced with a regulator.
  • the matching circuit 224 changes at least one of the capacitance or reactance of the circuit connected to the coil 221 according to the control of the control circuit 252, so that the power transmission circuit 209 and the power reception circuit 259 Impedance matching can be made.
  • the power transmission circuit 209 is described as a power transmission coil 209 and the power reception circuit 259 is described as a power reception coil 259.
  • the electronic device 250 checks specific information (eg, FOD offset value) for a foreign object detection operation (FOD) with the wireless power transmission device 200, and based on this, the wireless power transmission device 200 ) May cause the interruption of wireless power transmission due to the foreign object detection operation (FOD).
  • specific information eg, FOD offset value
  • the foreign material 510 may be defined as an object that interferes with wireless charging between the electronic device 250 and the wireless power transmission device 200.
  • the foreign matter 510 may be defined as an object positioned adjacent to an activation area in which wireless power, which can be heated by wireless charging, is exchanged.
  • the foreign material 510 may be an object disposed between the electronic device 250 and the wireless power receiving device.
  • the foreign material 510 may be an object made of various materials, such as a plastic object or a metal object.
  • FIG. 4 is a flowchart 400 illustrating an example of an operation for checking an offset value of an electronic device and causing a foreign object detection operation of a wireless power transmission device according to various embodiments of the present disclosure.
  • the operation of the electronic device 101 is not limited to the order of the operation of the electronic device 101 illustrated in FIG. 4, and may be performed in a different order from the illustrated order.
  • more operations are performed than the operations of the electronic device 101 illustrated in FIG. 4 or at least one operation less than the operations of the electronic device 101 illustrated in FIG. 4. This may be done.
  • FIG. 4 will be described with reference to FIG. 5.
  • FIG. 5 is a diagram illustrating an example of an operation for checking an offset value of an electronic device and causing a foreign object detection operation of a wireless power transmission device according to various embodiments of the present disclosure.
  • the electronic device 250 may initiate a wireless charging operation in operation 401.
  • the electronic device 250 may be placed in the housing of the wireless power transmission device 200 as shown in 501 of FIG. 5.
  • the electronic device 250 may perform an initiation procedure for wireless charging with the wireless power transmission device 200 in order to receive wireless power from the adjacent wireless power transmission device 200.
  • the electronic device 250 may receive wireless power from the power transmission coil 209 of the wireless power transmission device 200 using the power reception coil 259 from the wireless power transmission device 200 placed adjacent thereto. I can.
  • operations 402 and 403 of the electronic device 250 which will be described later, may be performed before or after receiving the wireless power, and there is no limitation on the execution time point.
  • the electronic device 250 (eg, at least one processor 120) sets a first value corresponding to a characteristic value (eg, an EM value) of the wireless power transmission device 200. I can confirm.
  • a characteristic value eg, an EM value
  • the electronic device 250 may check the characteristic value of the wireless power transmission device 200 based on at least one sensor 520 as illustrated in 502 of FIG. 5.
  • the operation of checking the characteristic value of the wireless power transmission device 200 based on at least one sensor 520 of the electronic device 250 includes a value received by the electronic device 250 from at least one sensor 520. It may be a broad concept including an operation of checking a characteristic value corresponding to a received value based on or an operation of obtaining a characteristic value analyzed by at least one sensor 520.
  • the at least one sensor 520 may itself analyze the characteristic value of the wireless power transmission device 200 and provide it to the processor, or provide raw data for analyzing the characteristic value to the processor. have.
  • a specific operation of checking the characteristic value of the electronic device 250 will be described later with reference to FIGS. 7 to 8.
  • the first value may be defined as a reference value for a foreign substance detection operation.
  • the probability that the foreign matter 510 is detected by the foreign matter detection operation of the wireless power transmission apparatus 200 can be increased (in other words, the detection operation of the foreign matter 510 In order to increase the success rate)
  • it may be a value referenced to adjust values (eg, a size value and a threshold value of wireless power) used for foreign material detection in a foreign material detection operation.
  • the first value is an offset-value, which is a value for tuning the size of the wireless power (hereinafter, referred to as received power) received by the electronic device 250, or a wireless power transmission device This may be a value for adjusting the size of the received power received from the electronic device 250 by 200.
  • the first value may be a value that is transmitted to the wireless power transmission apparatus 200 and referred to in order for the wireless power transmission apparatus 200 to set a threshold value for a foreign matter detection operation.
  • the electronic device 250 (e.g., at least one processor 120) is a plurality of devices for detecting foreign substances of the plurality of wireless power transmission devices 200 for each of the plurality of wireless power transmission devices 200. Can store the first values. That is, the electronic device 250 identifies the wireless power transmission device 200 based on the characteristic value of the wireless power transmission device 200, and sends the wireless power transmission device 200 identified among a plurality of stored first values. The corresponding first value can be checked.
  • the electronic device 250 eg, at least one processor 120
  • the wireless power transmission device 200 checks the size of the wireless power (hereinafter referred to as transmission power) transmitted to the wireless power reception device, the size of the checked transmission power, and the received from the electronic device 250 in operation 403.
  • a foreign matter detection operation may be performed based on the magnitude of the received power reflecting the first value.
  • the electronic device 250 may separately transmit the first value and information about the amount of received power.
  • the apparatus 200 for transmitting power wirelessly may perform a foreign matter detection operation based on the received first value, information on the amount of received power, and information on the amount of transmission power.
  • the electronic device 250 may transmit information to the wireless power transmission device 200 in an out-band or in-band manner.
  • the electronic device 250 may control the communication circuit 253 separately provided as 503 of FIG. 5 to transmit the information 513 to the wireless power transmission device 200 in an out-band manner.
  • the wireless power receiving apparatus 200 may control the communication circuit 103 to receive corresponding information.
  • the electronic device 250 may transmit information to the wireless power transmission device 200 by turning on/off a switch connected to a resistor and/or a capacitor. . A redundant description of out-band or in-band communication will be omitted.
  • the electronic device 250 itself identifies the wireless power transmission device 200 using a sensor, and reflects an offset value corresponding to the identified wireless power transmission device 200 to determine the amount of received power.
  • accuracy of a foreign matter detection operation of the wireless power transmission apparatus 200 may be improved based on an offset value appropriately reflected in the magnitude of the received power.
  • the electronic device checks the characteristic value of the wireless power receiving device and corresponds to the checked characteristic A.
  • FIG. 6 is a flowchart 600 illustrating an example of an operation of the electronic device 250 and the wireless power transmission device 200 according to various embodiments.
  • the operation of the electronic device 250 is not limited to the order of the operation of the electronic device 250 illustrated in FIG. 6, and may be performed in a different order from the illustrated order. Further, according to various embodiments, more operations are performed than the operations of the electronic device 250 illustrated in FIG. 6, or at least one operation less than the operations of the electronic device 250 illustrated in FIG. 6. This may be done.
  • FIG. 6 will be described with reference to FIG. 7.
  • FIG. 7 is a diagram illustrating an example of operations of the electronic device 250 and the wireless power transmission device 200 according to various embodiments.
  • "*" shown in FIG. 7 means all mathematical operations such as “multiplication, subtraction, division, or addition”, and may not be limited to a specific mathematical operation.
  • the electronic device 250 may initiate wireless charging in operation 601. Since operation 601 of the electronic device 250 may be performed like operation 401 of the electronic device 250 described above, a redundant description will be omitted.
  • the electronic device 250 may request identification information of the wireless power transmission device 200 from the wireless power transmission device 200 in operation 602. .
  • the electronic device 250 can control the at least one communication circuit 253 to transmit a message requesting identification information to the wireless power transmission device 200 in an out-band manner, as shown in 702 of FIG. 7. have.
  • the wireless power transmission apparatus 200 may control the communication circuit 203 to receive the request message.
  • the electronic device 250 may request identification information from the wireless power transmission device 200 by controlling the coil 259 for wireless power reception in an in-band manner.
  • the identification information may include various pieces of information for identifying the wireless power transmission apparatus 200.
  • Various pieces of information include TX-id of the wireless power transmission device 200, type information (eg, information on the pad type of the wireless power transmission device 200), and manufacturer information (eg, the wireless power transmission device 200). Or information about the company that sells it).
  • the electronic device 250 when identification information is not received from the wireless power transmission device 200 in operation 603, the electronic device 250 (eg, at least one processor 120) is Identification information may be requested from the wireless power transmission device 200.
  • the electronic device 250 When the electronic device 250 is placed in the wireless power transmission device 200 as shown in 701 of FIG. 7, the communication state is not smooth due to the foreign material 510 placed between the electronic device 250 and the wireless power receiving device, The device 250 may not be able to receive a communication message or a communication signal from the wireless power transmission device 200. Accordingly, the electronic device 250 may request the identification information from the wireless power transmission device 200 more than a specified number of times to receive the identification information from the wireless power transmission device 200 in consideration of a poor communication state. have.
  • the electronic device 250 (for example, at least one processor 120), even if the identification information is received from the wireless power transmission device 200 in operation 603, the wireless power transmission device 200 corresponding to the received identification information If is not identified, operation 604 may be performed. For example, the electronic device 250 compares the received identification information with a plurality of identification information corresponding to various types of wireless power transmission devices stored in the memory, and the identification information corresponding to the received identification information Since it is not confirmed, the wireless power transmission device 200 may not be identified.
  • the electronic device 250 has requested the identification information from the wireless power transmission device 200 but has not received the identification information from the wireless power transmission device 200, or the wireless power transmission device corresponding to the received identification information If 200 is not identified, operation 604 may be performed.
  • the electronic device 250 may check a characteristic value of the wireless power transmission device 200 in operation 604. For example, as shown in 703 of FIG. 7, the electronic device 250 may check a characteristic value of the wireless power transmission device 200 based on at least one sensor 520 device.
  • the characteristic value of the wireless power transmission device 200 may be a unique value for identifying the wireless power transmission device 200.
  • various types of wireless power transmission devices each uniquely include at least one device (eg, a coil 209 for wireless power transmission, a processor, a wire electrically connecting each component, a driving circuit, etc.), , It may have a unique method of driving at least one device (eg, a method of supplying power to each device, etc.).
  • the electronic device 250 may check the characteristic value by detecting a unique physical property of the wireless power transmission device 200 based on at least one sensor 520 device.
  • a physical property of the wireless power transmission apparatus 200 may be an electromagnetic property
  • a characteristic value of the wireless power transmission apparatus 200 may be an EM value (electromagnetic value). That is, the electronic device 250 may check the EM value of the wireless power transmission device 200 based on at least one sensor 520 for measuring the EM value. In addition to the above-described EM value, various characteristic values for the electronic device 250 to self-identify the wireless power transmission device 200 may be checked.
  • the electronic device 250 (for example, at least one processor 120) is in contact with the electronic device 250 (or, in order to check the characteristic value of the wireless power transmission device 200). You can check the characteristic value of the nearest device. Various types of devices may be placed around the electronic device 250. Therefore, the electronic device 250 is based on at least one sensor 520 in order to accurately check the characteristic value of the wireless power transmission device 200 among various types of devices. By checking the characteristic value, it may be confirmed as the characteristic value of the wireless power transmission apparatus 200.
  • the electronic device 250 (eg, at least one processor 120) is disposed on the wireless power transmission device 200 based on an electromagnetic field induced by applying an AC current to a coil.
  • the electromagnetic induction of some components of the wireless power transmission device 200 disposed closest to the electronic device 250 for example, a power receiving coil 259, a specific circuit, a resonator, etc.
  • Electromagnetic values formed in some configurations can be obtained as characteristic values.
  • the coil of the electronic device 250 may be a coil 259 for receiving wireless power.
  • the coil 259 for receiving wireless power provided in the electronic device 250 is a coil 259 for receiving power.
  • It may be a coil operated as a coil 209 for transmitting power.
  • the coil of the electronic device 250 may be a circuit including a coil for electromagnetic induction (or for checking characteristic values) provided separately from the coil 259 for receiving wireless power.
  • the electronic device 250 (eg, at least one processor 120) vibrates using a vibration module, and a physical value (eg, a vibration value) reflected from the contacted device can be checked as a characteristic value.
  • a vibration module e.g., a vibration module
  • the electronic device 250 (eg, at least one processor 120) vibrates using a sound output module (or an ultrasonic module), and a physical value reflected from the contacted device (eg, a sound value) , Ultrasonic value) can be confirmed as a characteristic value.
  • a sound output module or an ultrasonic module
  • the electronic device 250 sets a first value for a foreign matter detection operation corresponding to the characteristic value of the wireless power transmission device 200 identified in operation 605. I can confirm. For example, the electronic device 250 stores characteristic values for each of the various wireless power transmission devices 200, and allocates an offset value for a foreign substance detection operation to each of the various wireless power transmission devices 200, and the memory 130 Can be saved on. Accordingly, the electronic device 250 identifies the wireless power transmission device 200 corresponding to the characteristic value of the wireless power transmission device 200 identified based on the stored information, and sends the identified wireless power transmission device 200 to the You can check the assigned first value.
  • the electronic device 250 may determine the first value by further referring to the amount of received power. For example, in response to the first wireless power transmission device 200, the electronic device 250 may have a first value and a received power when the size of the received wireless power (hereinafter, referred to as the received power) is the first size. In the case of the second size, the second value may be stored in the memory 130 when the received power is the N-th size.
  • the electronic device 250 may store a value for each size of received power as well as a value for each range of received power.
  • the electronic device 250 checks the wireless power transmission device corresponding to the characteristic value of the electronic device 250, and a value corresponding to the size of the received power among a plurality of values allocated to the identified wireless power transmission device 200 Can be confirmed as the first value.
  • the electronic device 250 (eg, at least one processor 120) is determined in operation 606 as shown in 704 of FIG. 7 in the received power reflected by the first value (eg, an offset value).
  • Information about (offset * amount of received power (P PR )) may be transmitted to the wireless power transmission apparatus 200.
  • “*” means all mathematical operations such as “multiplication, subtraction, division, or addition”, and may not be limited to a specific mathematical operation.
  • the electronic device 250 (eg, at least one processor 120) checks the size of the output power (P out ) to check the size of the received power (P PR ), and the electronic device ( 250), the amount of power consumed (P PRloss ) can be checked.
  • the electronic device 250 outputs power as it receives power received from the wireless power transmission device 200 (for example, at least one of the points shown in FIGS.
  • 3A and 3C (O1, O2, determine the size (P out) of the output power at O3, O4, O5)), and at least one component (for example, included in electronic device 250: rectifier (rectifier), the coil (coil), a capacitor (capacitor) , you can determine the size (P PRloss) of the power consumed by at least one of the shielding member (shielding) of the coil, or a variety of metal objects (metal parts), and so on).
  • the electronic device 250 is not limited to the above description, and may simply check the size of the output power (P out ) and check the size of the checked output power (P out ) as the size of the received power (P PR ). have.
  • the electronic device 250 eg, at least one processor 120 reflects (eg, sums, subtracts, multiplies, and divides) a first value to the amount of received power.
  • the reflected amount of received power (offset * amount of received power (P PR )) may be checked and transmitted to the wireless power transmission apparatus 200.
  • the electronic device 250 (for example, at least one processor 120) separately provides information on the determined first value (offset value) and the received power size (P PR ). It can transmit to the transmission device 200.
  • the apparatus 200 for transmitting power wirelessly may perform a foreign object detection operation in operation 607.
  • the wireless power transmission apparatus 200 has a difference between the size of the transmit power (P PT ) and the size of the received power reflecting the first value (P PR ) (power loss (P loss ))
  • P loss power loss
  • the wireless power transmission device 200 in a manner similar to the electronic device 250, the amount of input power (for example, the amount of AC power received from the source) (P in ) and consumption by the wireless power transmission device 200 determine the size (P PTLoss) of the electric power and the magnitude of the input power (P in) minus the amount of power consumption in - the (P in PTLoss) you can determine the size (P PT) of the transmission power.
  • the apparatus 200 for transmitting power wirelessly may reflect (eg, sum, subtract, multiply, and divide) the first value from the size of the received power by itself.
  • the wireless power transmission apparatus 200 compares a difference and a threshold value between the magnitude of the transmission power and the magnitude of the reception power reflecting the first value (eg, summation, subtraction, multiplication, and division), and When the difference in the magnitude of the power is greater than the threshold value, it can be confirmed that the foreign matter 510 is present.
  • the wireless power transmission apparatus 200 may adjust a threshold value referred to in the current foreign matter detection operation based on the received first value.
  • the wireless power transmission apparatus 200 compares the difference between the magnitude of the transmission power and the magnitude of the reception power and the adjusted threshold value, and when the difference between the magnitude of the transmission power and the magnitude of the reception power is greater than the adjusted threshold value, the foreign matter ( 510) can be confirmed to exist.
  • the apparatus 200 for transmitting power wirelessly may stop the wireless charging operation in operation 608.
  • the wireless power transmission apparatus 200 may stop the wireless charging operation.
  • interruption of the wireless charging operation may be different for each period of the wireless charging operation.
  • interruption of the wireless charging operation means checking whether the procedure is interrupted when a procedure such as a ping connection for a wireless charging operation is initiated because the wireless charging operation is initiated, and if wireless power is being received. As shown in 706 of FIG. 7, it may mean that reception of wireless power is stopped.
  • the offset value is checked based on the characteristic value of the wireless power transmission device 200, and an accurate foreign material detection operation is performed based on this. ), by stopping the wireless charging operation in the presence of the foreign substance 510, it is possible to prevent overheating caused by the wireless charging operation in the presence of the foreign material 510.
  • the electronic device 250 allocates a first value (eg, an offset value) for a foreign matter detection operation for each group including at least one wireless power transmission device, and the identified wireless power transmission device ( The group corresponding to 200) may be checked, the first value assigned to the group may be checked, and this may be provided to the wireless power transmission apparatus 200. That is, the electronic device 250 may check a group in which the wireless power transmission device 200 is included, and provide the first value allocated to the identified group to the wireless power transmission device 200.
  • a first value eg, an offset value
  • FIG. 8 is a flowchart 800 for explaining an example of an operation of checking a group in which the apparatus 200 for transmitting power wirelessly of the electronic device 250 is included and providing a value assigned to the identified group according to various embodiments )to be.
  • the operation of the electronic device 250 is not limited to the order of the operation of the electronic device 250 illustrated in FIG. 8, and may be performed in a different order from the illustrated order. Further, according to various embodiments, more operations are performed than the operations of the electronic device 250 illustrated in FIG. 8, or at least one operation that is less than the operations of the electronic device 250 illustrated in FIG. 8. This may be done.
  • FIG. 8 will be described with reference to FIG. 9.
  • FIG. 9 is a diagram illustrating an example of an operation of checking a group in which the apparatus 200 for transmitting power wirelessly of the electronic device 250 is included and providing a value assigned to the identified group according to various embodiments of the present disclosure.
  • the electronic device 250 may check a characteristic value of a wireless power transmission price in operation 801. Since operation 801 of the electronic device 250 may be performed like operation 604 described above, a redundant description will be omitted.
  • the electronic device 250 may identify the wireless power transmission device 200 corresponding to the characteristic value in operation 802.
  • the meaning that the electronic device 250 identifies the wireless power transmission device 200 means not only checking the identification information 911 of the wireless power transmission device 200, but also the electronic device 250 A is a broad meaning of identifying which device the wireless power transmission device 200 is and which group corresponds to, and may be performed based on various information to be described later.
  • the wireless power transmission device 200 can be identified.
  • the electronic device 250 may store identification information 911 of the wireless power transmission device 200 corresponding to a plurality of characteristic values.
  • the electronic device 250 may store first identification information corresponding to the first characteristic value, second identification information corresponding to the second characteristic value, and N-th identification information corresponding to the N-th characteristic value in the memory 130. .
  • the electronic device 250 compares the stored information with the checked characteristic value, checks the identification information corresponding to the checked characteristic value, and identifies the wireless power transmission device 200 corresponding to the checked identification information. I can. However, there may be no wireless power transmission device 200 corresponding to the characteristic value checked by the electronic device 250, and this may be defined as the characteristic value of the wireless power transmission device 200 is not registered.
  • the electronic device 250 may identify the wireless power transmission device 200 by the characteristic value itself. For example, in the group-specific information 900 to be described later, the electronic device 250 identifies the wireless power transmission device 200 as a characteristic value instead of the identification information of the wireless power transmission device 200. ) Can be stored in the memory 130. In this case, the electronic device 250 does not need to check the identification information 911 of the wireless power transmission device 200 corresponding to the characteristic value of the wireless power transmission device 200, and immediately, the group-specific information corresponding to the characteristic value ( 900) can be identified.
  • the wireless power transmission device ( 200) can be identified.
  • the electronic device 250 receives and receives various pieces of information (eg, pad type information 912, manufacturer information, etc.) of the wireless power transmission device 200 as shown in group-specific information 900 to be described later.
  • a group including the identified wireless power transmission device 200 may be identified by identifying the wireless power transmission device 200 based on the various pieces of information.
  • the electronic device 250 may identify a group of the wireless power transmission device 200 identified in operation 803.
  • the electronic device 250 includes at least one wireless power transmission device as shown in 901 of FIG. 9 (910, Default, Group A, Group).
  • Information 900 (group-specific information) assigned a first value as B, Group C, and Group D) may be stored in the memory 130.
  • the electronic device 250 includes a first offset value corresponding to group A, a second offset value corresponding to group B, a third offset value corresponding to group C, ..., and a first offset value corresponding to group Z. You can store the Z offset value.
  • specific wireless charging and transmitting devices are included as a default group, and a default value may be assigned to the default group. The default value will be described later.
  • the group-specific information 900 includes identification information 911 (or the above-described characteristic value) of the wireless power transmission device 200 included for each group and various information (eg, pad type) of the wireless power transmission device 200. Information, manufacturer information), etc. Accordingly, the electronic device 250 is based on the identified identification information (911, for example, 0x20 ...) of the wireless power transmission device 200, a characteristic value, or various information (for example, pad type information 912). As a result, a group including the identified wireless power transmission device 200 may be identified.
  • the identification information may be various pieces of information (eg, MAC address, etc.) that can be allocated to the wireless power transmission device to identify the wireless power transmission device.
  • each group may include at least one wireless power transmission apparatus having the same or similar first value for a foreign matter detection operation.
  • the electronic device 250 may include, in the same group, at least one wireless power transmission device in which the foreign material has been successfully performed according to the foreign material detection operation based on the common first value.
  • the electronic device 250 may reflect (eg, sum, subtract, multiply, and divide) the first value common to the corresponding group.
  • the electronic device 250 allocates the corresponding first value to a specific group, and at least When the first values associated with each of one wireless power transmission device have a slight difference, an average value of each of the first values may be assigned to a specific group.
  • the electronic device 250 (eg, at least one processor 120) machine-learns an optimal first value for various types of wireless power transmission devices, and obtains a similar first value as a result of the machine learning.
  • the branch may generate at least one wireless power transmission device as a group and allocate a corresponding first value for each group.
  • the electronic device 250 may update the above-described stored first value for each group. For example, the electronic device 250 adjusts the wireless power transmission device 200 included in the above-described group to be included in another group, or creates a new group including the newly identified wireless power transmission device 200 An operation of allocating the first value to the created group may be performed. The operation of the electronic device 250 will be described in more detail with reference to FIGS. 9 to 12. Also, the electronic device 250 may continuously update the offset value allocated to a group according to the aforementioned machine learning.
  • the operation of storing and updating information on the first value for each group of the electronic device 250 described above may be performed by another electronic device 250 (eg, a server).
  • the other electronic device 250 (for example, a server) may receive and update information on the first value for each group from the plurality of electronic devices 250, and each of the plurality of electronic devices 250 Stored information can be delivered.
  • the electronic device 250 stores the offset values for each group, there is no need to store the offset values for each of the various wireless power transmission devices 200, so that the operational burden of the electronic device 250 may be reduced.
  • the electronic device 250 updates the offset value, the accuracy of the foreign matter detection operation may be improved.
  • the electronic device 250 may identify a group including the identified wireless power transmission device 200 among the plurality of groups 910. For example, as shown in 902 of FIG. 9, the electronic device 250 may check group A corresponding to the identification information 911 of the wireless power transmission device 200 corresponding to the characteristic value. In addition, as described above, according to various embodiments, the electronic device 250 may identify a group in which the wireless power transmission device 200 is included based on a characteristic value or various information.
  • the electronic device 250 may check a first value corresponding to the group identified in operation 804.
  • the electronic device 250 may check the offset value allocated to the identified group as shown in 902 of FIG. 9.
  • the electronic device 250 (eg, at least one processor 120) does not identify the wireless power transmission device 200 corresponding to the characteristic value, or the identified wireless power transmission device 200 If the group is not identified, in operation 805, a default value may be determined as the first value for the foreign substance detection operation.
  • the default value may be a predetermined common value in order to maximize the accuracy of a foreign matter detection operation of various types of wireless power transmission apparatuses.
  • the default value may be a preset value so as to ensure the accuracy of the foreign matter detection operation of various types of wireless power transmission devices to a specific level.
  • the electronic device 250 is a first value corresponding to the characteristic value. You can also check. For example, the electronic device 250 may identify another electronic device 250 that is most similar to the identified characteristic value, and check a first value allocated to the identified other electronic device. In this case, as described above, the electronic device 250 checks a group including other electronic devices identified as having a characteristic value similar to that of the wireless power transmission device 200, and is assigned to the identified group. You can check the value of 1.
  • the electronic device machine-learns the success rate of the foreign matter detection operation of the first value (offset value) for each characteristic value of various wireless power transmission devices, acquires the relationship between the characteristic values and the offset values, and the characteristics identified as described above. You can check the offset value assigned to the similar characteristic value corresponding to the value.
  • the electronic device 250 may transmit information on the amount of received power in which the first value is reflected in operation 806. Since operation 806 of the electronic device 250 may be performed like operation 606 of the electronic device 250 described above, a redundant description will be omitted.
  • the electronic device 250 when the wireless charging operation by the foreign object detection operation of the wireless charging transmission device is not stopped based on a first value (eg, a default value), the electronic device 250 A second value (eg, a value for which a default value has been adjusted) may be checked (or calculated), and a foreign matter detection operation of the wireless charging/transmitting apparatus may be performed based on the second value.
  • a first value eg, a default value
  • a second value eg, a value for which a default value has been adjusted
  • a foreign matter detection operation of the wireless charging/transmitting apparatus may be performed based on the second value.
  • the foreign matter detection operation When the foreign matter detection operation is performed based on the default value for the unidentified wireless power transmission device 200, the foreign matter may not be detected by the foreign matter detection operation in the presence of the foreign matter, but the default for the foreign matter detection operation By gradually adjusting the value so that the foreign material detection operation is performed, the accuracy of the foreign material detection operation may be improved.
  • FIG. 10 is a flowchart 1000 illustrating an example of an operation of adjusting a default value for a foreign substance detection operation of the electronic device 250 to another value according to various embodiments.
  • the operation of the electronic device 250 is not limited to the order of the operation of the electronic device 250 illustrated in FIG. 10, and may be performed in a different order from the illustrated order.
  • more operations are performed than operations of the electronic device 250 illustrated in FIG. 10, or at least one operation that is less than operations of the electronic device 250 illustrated in FIG. 10 This may be done.
  • FIG. 10 will be described with reference to FIG. 11.
  • 11 is a diagram for explaining an example of an operation of adjusting a default value for a foreign substance detection operation of the electronic device 250 to another value according to various embodiments of the present disclosure.
  • the electronic device 250 eg, at least one processor 120 stops the wireless charging operation based on a first value (eg, a default value) previously identified in operation 1001
  • a first value eg, a default value
  • the electronic device 250 transmits information on the amount of received power in which a previously identified first value (eg, default value) is reflected, or the first value (eg, default value) and the amount of received power are After separately transmitting the related information, it is possible to check whether the wireless charging operation is stopped until a specified period.
  • the wireless power transmission device 200 is not identified, the electronic device 250 checks a default value assigned to a default group among group-specific information 900 as shown in 1101 of FIG. 11, and reflects the default value.
  • Information about the amount of received power may be transmitted to the wireless power transmission apparatus 200, and then it may be checked whether or not the wireless charging operation is stopped until a specified period.
  • a condition in which the operation of adjusting the first value is triggered may be a case in which an abnormal state different from the normal state is identified.
  • the electronic device 250 may perform operations 1002 to 1006 thereafter. An operation of checking the abnormal state of the electronic device 250 will be described later in detail with reference to FIGS. 12 and 13.
  • the electronic device 250 when the wireless charging operation is not stopped, the electronic device 250 (eg, at least one processor 120) checks the second value by adjusting the first value in operation 1002, and operation 1003.
  • the information on the magnitude of the received power in which the second value is reflected may be transmitted to the wireless power transmission apparatus 200.
  • the electronic device 250 may increase or decrease the first value to check the second value, and reflect the second value to the size of the received power (eg, summation, subtraction, multiplication, and division).
  • the electronic device 250 may determine that the wireless charging operation is stopped in operation 1004. For example, as in operation 1001, the electronic device 250 checks whether the wireless charging operation is stopped based on a second value, and a foreign object is detected by the wireless power transmission device 200 based on the second value, and wireless charging You can see that the operation is stopped.
  • the electronic device 250 may check a group corresponding to the second value in operation 1005. For example, as shown in 1102 of FIG. 11, the electronic device 250 may identify a specific group (eg, group A) to which the second value is assigned. Alternatively, the electronic device 250 may check a specific group to which a value within an allowable range from the second value is assigned.
  • the electronic device 250 includes the wireless power transmission device 200 in the group identified in operation 1006 or the wireless power transmission device 200 in a new group to store information in the memory 130. Can be saved on.
  • the electronic device 250 (for example, at least one processor 120) is the wireless power transmission device 200 (for example, the wireless power transmission device 200 identified in a specific group (for example, group A) identified as 1102 of FIG. : Information may be stored in the memory 130 to include a wireless power transmission device having a TX-ID of 0x55). Accordingly, after the information is stored, when the electronic device 250 identifies the wireless power transmission device 200 (a wireless power transmission device with a TX-ID of 0x55), it is assigned to a specific group (eg, group A). The value (eg, the second value) can be reflected (eg, summed, subtracted, multiplied, and divided) to the size of the received power.
  • a specific group eg, group A
  • the value eg, the second value
  • the value can be reflected (eg, summed, subtracted, multiplied, and divided) to the size of the received power.
  • the electronic device 250 (eg, at least one processor 120) is not shown in FIG. 11, but when the group is not identified, a new group is created and a wireless power transmission device identified in the new group Information may be stored in the memory 130 so that 200 (eg, a wireless power transmission device having a TX-ID of 0x55) is included. Also, the electronic device 250 may allocate the second value to the new group.
  • a value assigned to a new group may be reflected (eg, summed, subtracted, multiplied, and divided) to the size of the received power.
  • the electronic device 250 when the electronic device 250 checks that the current wireless charging operation is in an abnormal state (or confirms that it is not a normal state), the electronic device 250 is different from the first value for the previous foreign object detection operation.
  • a second value eg, a value in which the first value is adjusted
  • a foreign substance detection operation may be performed based on the second value.
  • the abnormal state means a state in which a foreign substance 510 exists and the wireless charging operation is not performed smoothly
  • the normal state is a state in which the foreign substance 510 does not exist, so that the wireless charging operation is smoothly performed.
  • FIG. 12 is a flowchart 1200 illustrating an example of an operation of checking an abnormal state of the electronic device 250 according to various embodiments.
  • the operation of the electronic device 250 is not limited to the order of the operation of the electronic device 250 illustrated in FIG. 12, and may be performed in a different order from the illustrated order.
  • more operations are performed than the operations of the electronic device 250 illustrated in FIG. 12, or at least one operation less than the operations of the electronic device 250 illustrated in FIG. 12. This may be done.
  • FIG. 12 will be described with reference to FIG. 13.
  • FIG. 13 is a diagram illustrating an example of an operation of checking an abnormal state of the electronic device 250 according to various embodiments.
  • the electronic device 250 may initiate a wireless charging operation in operation 1201.
  • the electronic device 250 is placed on the wireless power transmission device 200, and the wireless power transmission device 200 using the power receiving coil 259 The first wireless power may be received from.
  • the wireless power transmission apparatus 200 may transmit wireless power once again to the electronic device 250 by using the power transmission coil 209.
  • Other operations 1201 of the electronic device 250 may be performed in the same manner as operations 601 and 301 of the electronic device 250 described above, and thus redundant descriptions will be omitted.
  • the electronic device 250 eg, at least one processor 120
  • the electronic device 250 reflects the first value or the second value for the foreign object detection operation according to the start of the wireless charging operation as described above.
  • Information on the amount of received power may be transmitted to the wireless power transmission apparatus 200.
  • the electronic device 250 after the start of the wireless charging operation, the electronic device 250 (for example, the at least one processor 120) includes a value related to the second wireless power received in a normal state in operation 1202 and the first wireless power. Related values can be compared.
  • the electronic device 250 when the electronic device 250 (eg, at least one processor 120) receives wireless power in a state in which there is no foreign substance 510 (or a normal state), the electronic device 250 is Can store values.
  • the value related to the wireless power received in the normal state is a temperature value formed in the electronic device 250 when wireless power is received, a magnitude value of output power (eg, output power of a rectifier, etc.) as the wireless power is received, It may include an electromagnetic value formed in the electronic device 250 as the wireless power is received. It is not limited to the described one, and the value related to the wireless power received in the normal state may include various values.
  • the received A value related to wireless power may be stored in the memory 130.
  • a value related to the received wireless power is a first value when wireless power is received in a normal state in the case of the first wireless power transmission device 200, and a normal state in the case of the second wireless power transmission device 200
  • the Nth value may be stored in the memory 130 when the wireless power is received in a normal state.
  • the electronic device 250 may receive identification information from the wireless power transmission device 200 or identify the wireless power transmission device 200 by checking a characteristic value of the wireless power transmission device 200 as described above. Then, a value related to the wireless power received in a normal state corresponding to the identified wireless power transmission device 200 may be checked.
  • the electronic device 250 may determine a value related to the first wireless power received in a current state (eg, an abnormal state or a state in which foreign matter 510 is present). I can confirm.
  • the value related to the first wireless power received in the current state is a temperature value formed in the electronic device 250 as the wireless power is received, such as a value related to the wireless power received in the normal state, and the output power as the wireless power is received. It may include a size value (eg, output power of a rectifier, etc.), an electromagnetic value formed in the electronic device 250 as wireless power is received.
  • the electronic device 250 (for example, at least one processor 120), as shown in 1302 of FIG. 13, the first wireless power value (Ap1) received from the wireless power transmission device 200 in the current state and The value Ap2 of the second wireless power received in a pre-stored normal state may be compared. As a result of the comparison, if the respective values are different, the electronic device 250 may determine that the current state is an abnormal state. Alternatively, as a result of the comparison, when the value of the current state exceeds the permitted range from the value of the normal state, the electronic device 250 may determine that the current state is an abnormal state.
  • the operation of comparing the value Ap1 for the first wireless power received in the current state of the electronic device 250 with the value Ap2 for the second wireless power received in the normal state stored in advance is described in FIGS. 15 to 17 It will be described later in detail.
  • the electronic device 250 may adjust the first value for the foreign matter detection operation in operation 1203. For example, after the start of the wireless charging operation, the electronic device 250 may adjust (eg, decrease or increase) the checked first value to reflect the amount of received power. Since the operation of checking the first value of the electronic device 250 may be performed in the same manner as the operation 605 of the electronic device 250 and the operation of FIG. 9 of the electronic device 250 described above, a duplicate description will be omitted.
  • the electronic device 250 (eg, at least one processor 120) transmits information on the amount of received power in which the first value adjusted in operation 1204 is reflected, to the wireless power transmission device 200 can do.
  • the electronic device may control the communication circuit 253 to transmit information on the amount of received power in which the adjusted first value is reflected as shown in 1303 of FIG. 13.
  • the wireless power transmission apparatus 200 re-performs the foreign matter detection operation based on the size of the received power and the size of the transmission power in which the adjusted first value as in operation 1304 of FIG. 13 is reflected, to detect the foreign matter and wirelessly charge it. You can stop the operation.
  • the accuracy of the foreign matter detection operation may be improved.
  • the electronic device 250 compares a value related to the currently received wireless power with a value related to the wireless power received in a normal state (or a state in which there is no foreign matter 510), and compares the first value. After adjusting, the first value for each group stored in the electronic device 250 may be updated based on the adjusted first value.
  • FIG. 14 is a flowchart 1400 for describing an example of an operation of comparing a value related to the wireless power currently received by the electronic device 250 and a value related to the wireless power received in a normal state according to various embodiments .
  • the operation of the electronic device 250 is not limited to the order of the operation of the electronic device 250 illustrated in FIG. 14, and may be performed in a different order from the illustrated order.
  • more operations are performed than operations of the electronic device 250 illustrated in FIG. 14, or at least one operation that is smaller than operations of the electronic device 250 illustrated in FIG. 14 This may be done.
  • FIG. 14 will be described with reference to FIGS. 15 to 17.
  • 15 is a diagram for describing an example of an operation of comparing a value related to the wireless power currently received by the electronic device 250 and a value related to the wireless power received in a normal state according to various embodiments.
  • 16 is a diagram illustrating an example of an operation of updating a first value for each group of the electronic device 250 according to various embodiments of the present disclosure.
  • 17 is a diagram for explaining an example of an operation of displaying a screen for a foreign substance check request by the electronic device 250 according to various embodiments of the present disclosure.
  • the electronic device 250 may control to receive the first wireless power in operation 1401.
  • the electronic device 250 identifies the wireless power transmission device 200 after the wireless charging operation is started, and receives wireless power from the wireless power transmission device 200 using a power receiving coil. can do.
  • the electronic device 250 checks the wireless power transmission device 200 identified as 1501 of FIG. 15 and a first value A2 corresponding to the magnitude of the current received power, and the confirmed first value A2 ) May be transmitted to the wireless power transmitter 200 to the information about the amount of received power reflected.
  • the first value A2 may be a value assigned to group A.
  • the electronic device 250 may compare a value related to the second wireless power received in a normal state and a value related to the first wireless power in operation 1402. have. For example, as shown in 1502 of FIG. 15, the electronic device 250 may compare a value 1521 related to the second wireless power received in a normal state and a value 1522 related to the first wireless power as shown in 1502 of FIG. 15. Further, for example, the electronic device 250 may compare the difference value 1523 of 1502 in FIG. 15 with a threshold value.
  • the electronic device 250 may perform operation 1402 at a designated time point. For example, depending on the wireless charging operation, there may be a difference between a value in a normal state and a value in an abnormal state from a specific point in time after wireless power is received. In other words, even in a state in which the foreign material 510 is present, a value in a normal state and a value in an abnormal state may differ from a specific point in time after the wireless power is received. Accordingly, the electronic device 250 may perform operation 1402 from a point in time when a wireless charging operation is started or a specific time point has passed from a point in time when wireless power is received as shown in 1502 of FIG. 15. Accordingly, as the electronic device 250 performs an operation of checking a value in a normal state and a value in an abnormal state indiscriminately, the operational burden of the electronic device 250 may be reduced.
  • the electronic device 250 may check whether the current state is an abnormal state in operation 1403 based on the result of the comparison operation in operation 1402. For example, when the electronic device 250 is different from the value related to the 2 wireless power (1521) and the value related to the first wireless power (1522) received in the normal state, or if the difference value exceeds the threshold value, the current The state can be confirmed as an abnormal state (or a state in which the foreign material 510 is present).
  • the electronic device 250 (eg, at least one processor 120) adjusts a first value A2 corresponding to the first wireless power received in operation 1404 when an abnormal state is confirmed. Then, information about the amount of received power in which the adjusted first value A2-1 is reflected in operation 1405 may be transmitted to the wireless power transmission apparatus 200. Since operations 1404 to 1405 of the electronic device 250 may be performed in the same manner as operations 1203 to 1204 of the electronic device 250 described above, a redundant description will be omitted.
  • the electronic device 250 may determine whether the reception of wireless power is stopped in operation 1406.
  • the wireless power transmission apparatus 200 performs a foreign material detection operation based on the size of the received power and the size of the transmission power in which the adjusted first value A2-1 is reflected, and when the foreign material 510 is detected, the wireless power is Transmission can be stopped. Since the foreign matter detection operation of the wireless power transmission apparatus 200 may be performed like operation 607 of the wireless power transmission apparatus 200 described above, a redundant description will be omitted.
  • the electronic device 250 when reception of wireless power is stopped in operation 1406, the electronic device 250 (eg, at least one processor 120) corresponds to the first value A2-1 adjusted in operation 1407.
  • Information including the wireless power transmission apparatus 200 may be determined in the group identified in operation 1408, or the wireless power transmission apparatus 200 may be stored in a new group.
  • the electronic device 250 Information may be stored so that the wireless power transmission device 200 identified in (eg, a wireless power transmission device having a TX-ID of 0x22) is included.
  • the wireless power transmission device 200 identified in eg, a wireless power transmission device having a TX-ID of 0x22
  • the electronic device 250 creates a new group and allocates the adjusted first value A2-1 .
  • Information may be stored so that the identified wireless power transmission device 200 (eg, a wireless power transmission device having a TX-ID of 0x22) is included in the generated new group. Since operations 1407 to 1408 of the electronic device 250 may be performed in the same manner as operations 1005 to 1006 of the electronic device 250 described above, a redundant description will be omitted.
  • the electronic device 250 adjusts the first value A2-1 in operation 1409 when the reception of wireless power is not stopped in operation 1406. It is possible to check whether the operation has reached a preset number of times. For example, after transmitting information on the amount of received power in which the adjusted first value (A2-1) is reflected to the wireless power transmission apparatus 200, it is determined whether the reception of wireless power is stopped when a specified time elapses. I can confirm. When the reception of wireless power is not stopped, the electronic device 250 readjusts the adjusted first value A2-1 again, and adjusts the amount of the received power reflecting the readjusted first value. ) Can be sent. Thereafter, when the reception of wireless power is not continuously stopped, the electronic device 250 may further perform the operation of readjusting the above-described first value a predetermined number of times.
  • the electronic device 250 when the electronic device 250 (for example, at least one processor 120) determines that the operation of adjusting the first value in operation 1407 has reached a preset number of times, the foreign matter is checked in operation 1410. You can display a screen for request. For example, the electronic device 250 adjusts a first value a predetermined number of times, and transmits information on the amount of received power in which the adjusted first value A2-1 is reflected to the wireless power transmission device 200 Even so, the reception of wireless power may not be stopped. In this case, the electronic device 250 may switch a screen displayed as shown in 1701 of FIG. 17 to display a screen 1710 for requesting removal of a foreign material or confirmation of a foreign material as shown in 1702 of FIG. 17 on the display.
  • the electronic device 250 may switch a screen displayed as shown in 1701 of FIG. 17 to display a screen 1710 for requesting removal of a foreign material or confirmation of a foreign material as shown in 1702 of FIG. 17 on the display.
  • the foreign matter 510 placed between the electronic device 250 and the wireless power transmission device 200 may be removed by the user.
  • the electronic device 250 compares the value of the currently received wireless power with the value of the received power received in a normal state after a preset time t as shown in 1704 of FIG. 17, and the current state becomes a normal state. When it is confirmed, the display of the screen 1710 for checking foreign substances may be stopped.
  • the electronic device 250 compares a temperature value according to the currently received wireless power with a temperature value due to the wireless power received in a normal state (or a state in which there is no foreign matter 510), You can adjust the value.
  • FIG. 18 is a flowchart illustrating an example of an operation of comparing a temperature value due to wireless power currently received by the electronic device 250 and a temperature value due to wireless power received in a normal state according to various embodiments (1800). )to be.
  • the operation of the electronic device 250 is not limited to the order of the operation of the electronic device 250 illustrated in FIG. 18, and may be performed in a different order from the illustrated order.
  • more operations are performed than operations of the electronic device 250 illustrated in FIG. 18, or at least one operation less than operations of the electronic device 250 illustrated in FIG. 18 This may be done.
  • FIG. 18 will be described with reference to FIG. 19.
  • FIG. 19 is a diagram for describing an example of an operation of comparing a temperature value due to wireless power currently received by the electronic device 250 with a temperature value due to wireless power received in a normal state.
  • the electronic device 250 may control to receive the first wireless power in operation 1801. Since operation 1801 of the electronic device 250 may be performed like operation 1401 of the electronic device 250 described above, a redundant description will be omitted.
  • the electronic device 250 (for example, at least one processor 120) is the electronic device 250 based on the second wireless power received in a normal state as shown in FIG. 19 in operation 1802.
  • a first temperature value 2101 of the first portion 2001 of may be compared with a second temperature value 2102 of the first portion 2001 by the first wireless power.
  • the first portion 2001 of the electronic device 250 may be defined as at least a partial region of a configuration in which the temperature rises rapidly as the electronic device 250 receives wireless power.
  • the first part 2001 may be at least a part of a wireless power receiving module including a coil 259 for receiving wireless power to receive wireless power as shown in FIG. 19.
  • the first part 2001 may be at least a part of the configuration of the electronic device 250 corresponding to a position where the temperature may rapidly increase when the foreign material 510 receives wireless power.
  • the first part 2001 is a part of the configuration of the electronic device 250 at a corresponding (eg, adjacent) position of the power transmission coil 209 of the wireless power transmission device 200, and is used for power transmission.
  • the first part 2001 may be heated as heat is generated from the foreign material 510 that has received wireless power.
  • the electronic device 250 may pre-store information on a temperature value of the first portion 2001 by wireless power received in a normal state.
  • the electronic device 250 may pre-store information about the temperature of the first part 2001 of the electronic device 250 after a time point and time elapsed when wireless power is received in a normal state.
  • the electronic device 250 (eg, at least one processor 120) measures the temperature value 2102 of the current first part 2001 as shown in FIG. It can be compared with the temperature value 2101 of the first part 2001 by the received wireless power in the stored normal state. At this time, the electronic device 250 checks the information on the time point after the wireless power is received, and the temperature value of the first part 2001 by the wireless power received in a pre-stored normal state corresponding to the checked time point (2101) can be called.
  • the electronic device 250 receives wireless power from the wireless power transmission device 200 as shown in FIG. 19 and after a specified period has elapsed. (From time point 2301), the temperature value 2102 of the first part 2001 based on the currently received wireless power may be compared with the temperature value 2101 based on the wireless power received in a normal state. Alternatively, the electronic device 250 is the temperature value 2102 of the first part 2001 based on the received wireless power and the temperature value 2101 based on the wireless power received in the normal state only within the specified time range 2302 Can be compared. As illustrated in FIG.
  • the difference 2103 between the temperature value of the first portion 2001 in the abnormal state and the normal state may be abrupt from a specified time point or within a specified time range. Accordingly, the electronic device 250 checks the difference in temperature of the first part 2001 at a point in time or a time range when the temperature difference 2103 of the first part 2001 in the normal state and the abnormal state is abrupt, and the abnormal state It can improve the accuracy of verification.
  • the electronic device 250 may have a second temperature value 2102 exceeding the first temperature value 2101 in operation 1803, or the second temperature value (
  • the electronic device using the first temperature value 2101 and the second wireless power received in a normal state in operation 1804
  • the second difference value 2205 of the value 2202 may be compared.
  • the second part 2002 of the electronic device 250 has a relatively lower temperature than the first part 2001 ( 250) may be at least a partial area of the configuration.
  • the second part 2002 may be at least a part of a configuration including a USB connector as shown in FIG. 19.
  • the second portion 2002 is a portion spaced apart from the first portion 2001, and thus, the influence of the received power is not large, so that the temperature may be relatively lower than that of the first portion 2001.
  • the electronic device 250 (for example, at least one processor 120) stores information about the temperature value 2202 of the second portion 2002 by wireless power received in a normal state in advance. I can.
  • the electronic device 250 may pre-store information about a time point at which wireless power is received in a normal state and a temperature of the second portion 2002 of the electronic device 250 after a time elapses.
  • the electronic device 250 (eg, at least one processor 120) may be configured to have a first temperature value 2101 and a first temperature value 2101 of the first part 2001 in a normal state.
  • the difference 2204 of the fourth temperature value 2202 of the second part 2002 and the second temperature value 2102 of the first part 2001 in the current state and the fourth temperature value of the second part 2002 can be compared.
  • the electronic device 250 may perform operation 1804 within a specified time point or time range.
  • the electronic device 250 does not need to store information on the temperature value 2202 of the second part 2002 in a normal state in advance,
  • the temperature value 2201 of the second part 2002 measured in the current state may be used.
  • the electronic device 250 may determine the difference between the first temperature value 2101 of the first portion 2001 in the normal state and the fourth temperature value 2202 of the second portion 2002 in the current state, and the current value.
  • a difference between the second temperature value 2102 of the first portion 2001 and the fourth temperature value 2202 of the second portion 2002 in the state may be compared.
  • the operation of the electronic device 250 as described above may be performed when the temperature of the second portion 2002 is small between a normal state and an abnormal state.
  • the electronic device 250 may have a second difference value 2205 exceeding the first difference value 2204 in operation 1805, or the second difference value ( 2205) and the first difference value 2204, if it is determined that the difference exceeds the threshold value, the first value corresponding to the first wireless power received in operation 1806 is adjusted, and the first value adjusted in operation 1807 Information on the reflected received power level may be transmitted to the wireless power transmission apparatus 200. Since operations 1806 to 1807 of the electronic device 250 may be performed in the same manner as operations 1404 to 1405 of the electronic device 250 described above, a redundant description will be omitted.
  • operations 1802 to 1803 of the electronic device 250 are omitted and operations 1804 to 1805 of the electronic device 250 are performed, or only operations 1802 to 1083 of the electronic device 250 are performed, and the electronic device ( Operation 1804 to 1805 of 250) may be omitted.
  • the operations of various embodiments of the electronic device 250 described above may also be performed in the wireless power transmission device 200.
  • the wireless power transmission device 200 separately receives information on the size and the offset value of the received power, You can apply an offset value to the size.
  • the electronic device 250 at least one coil, at least one sensor 520, and at least one processor 120 are included, and the at least one processor 120 is When the identification information of the wireless power transmission device 200 is requested from the power transmission device 200 and the identification information is not received from the wireless power transmission device 200, the at least one sensor 520 is used.
  • the at least one sensor 520 is used.
  • To check the characteristic value of the wireless power transmission device 200 check the wireless power transmission device 200 corresponding to the identified characteristic value, and corresponding to the identified wireless power transmission device 200
  • An electronic device 250 configured to control the at least one communication circuit may be provided.
  • the at least one processor 120 transmits a message requesting the identification information a specified number of times.
  • the electronic device 250 which is set to control the communication circuit of, may be provided.
  • the memory 130 further includes a memory 130 configured to store a plurality of values for the foreign matter detection operation related to a plurality of groups each including at least one first wireless power transmission device 200 And, the at least one processor 120 checks the first group corresponding to the identified wireless power transmission device 200 among the plurality of groups, and corresponds to the confirmed first group among the plurality of values.
  • An electronic device 250 configured to check the first value to be determined may be provided.
  • the memory 130 further stores characteristic values of the plurality of wireless power transmission devices 200 and identification information of the plurality of wireless power transmission devices 200, and the at least one processor 120 checks the characteristic value of the wireless power transmission device 200 detected based on at least one component included in the wireless power transmission device 200 using the at least one sensor 520 And, the electronic device 250, which is set to check a first characteristic value corresponding to the identified characteristic value among the characteristic values, and check first identification information corresponding to the first characteristic value among the identification information, Can be provided.
  • the electronic device 250 may be provided, wherein the characteristic value includes an EM (Electro Magnetic) value of the wireless power transmission device 200.
  • EM Electro Magnetic
  • the at least one processor 120 checks a default value as the first value, and the default value is reflected.
  • An electronic device 250 configured to transmit information on the amount of received wireless power to the wireless power transmission device 200 may be provided.
  • the at least one processor 120 adjusts the default value, and the received wireless power reflecting the adjusted default value.
  • the at least one communication circuit is controlled to transmit information on the size of the wireless power transmission device 200 to the wireless power transmission apparatus 200, and the wireless charging operation is stopped based on the adjusted default value, the confirmed wireless power transmission Allocating the adjusted default value to a new second group including the device 200, controlling the memory 130 to store the adjusted default value, and then reconfirming the wireless power transmission device 200
  • the electronic device 250 configured to check the adjusted default value allocated to the new second group may be provided.
  • the at least one processor 120 may be configured to a first temperature and the electronics of the first part of the electronic device 250. Check the first temperature of the second part of the device 250, check the difference between the first temperature and the second temperature, and if the difference between the first temperature and the second temperature is greater than a threshold temperature, The electronic device 250 configured to control the at least one communication circuit so as to transmit information on the amount of the received wireless power to which the value of 2 is reflected may be provided to the wireless power transmission device 200.
  • a first portion of the electronic device 250 includes the at least one power receiving coil 259, and a second portion of the electronic device 250 is spaced apart from the first portion.
  • the electronic device 250 may be provided.
  • the at least one processor 120 adjusts the second value, and the adjusted second value is reflected.
  • An electronic device 250 configured to control the at least one communication circuit to transmit information on the amount of received wireless power to the wireless power transmission device 200 may be provided.
  • the memory 130 when the wireless charging operation is stopped based on the second value, the memory 130 further includes, and the at least one processor 120 selects a group corresponding to the second value.
  • An electronic device 250 configured to control the memory 130 to check and store information so that the identified wireless power transmission device 200 is included in a group corresponding to the second value may be provided.
  • the at least one processor 120 when the group corresponding to the second value is not identified, creates a new group including the identified wireless power transmission device 200, and the An electronic device 250 configured to control the memory 130 to store information on the new group including the identified wireless power transmission device 200 may be provided.
  • a memory 130, at least one power receiving coil 259, and at least one processor 120 are included, and the at least one processor 120 is the number of the at least one power
  • the electronic device 250 is controlled to receive the first wireless power from the wireless power transmission device 200 using the credit coil 259, and the second wireless power received in a normal state previously stored in the memory 130 and A related reference value and a value related to the received first wireless power are compared, and based on the comparison result, a first value corresponding to the first wireless power previously stored for a foreign matter detection operation in the memory 130 is calculated.
  • the electronic device 250 is set to control the at least one communication circuit so as to adjust and transmit information on the magnitude of the first wireless power reflecting the adjusted first value to the wireless power transmission device 200 Can be provided.
  • the at least one processor 120 transmits information on the magnitude of the first wireless power reflecting the first value to the wireless power transmission device 200, and transmits the first value. If the reception of the first wireless power from the wireless power transmission apparatus 200 is not stopped, the reference value related to the second wireless power is set to compare the value related to the received first wireless power.
  • the electronic device 250 may be provided.
  • the at least one processor 120 includes a first temperature value of the first portion of the electronic device 250 and the received power based on the second wireless power previously stored in the memory 130. Comparing a second temperature value of the first part of the electronic device 250 by a first wireless power, and when the second temperature value exceeds the first temperature value, the second temperature value and the reception The first difference between the third temperature value of the second part of the electronic device 250 due to the first wireless power and the first temperature value, and the electrons by the second wireless power previously stored in the memory 130 The electronic device 250, set to adjust the first value, is provided to compare a second difference in temperature of the second portion of the device 250, and if the first difference exceeds the second difference. I can.
  • the display further includes a display, and the at least one processor 120 stops receiving the first wireless power from the wireless power transmission device 200 based on the adjusted first value. If not, the electronic device 250, which is set to control the display to display a screen for requesting foreign matter confirmation, may be provided.
  • the memory 130 further includes a memory 130 configured to store a plurality of values for the foreign matter detection operation related to a plurality of groups each including at least one first wireless power transmission device 200 And, when the reception of the wireless power from the wireless power transmission device 200 is stopped based on the adjusted first value, the at least one processor 120 is the adjusted first among the plurality of groups. Check the first group corresponding to the value, control the memory 130 to store information so that the wireless power transmission device 200 is included in the first group, and the adjusted first group among the plurality of groups is If the first group corresponding to the value 1 is not identified, a new group is created and the memory 130 is set to control the memory 130 to store information on the new group including the wireless power transmission device 200 , The electronic device 250 may be provided.
  • the electronic device 250 includes a memory 130, at least one power receiving coil, and at least one processor 120, and the at least one processor 120 includes the Controls the electronic device 250 to receive first wireless power from the wireless power transmission device 200 using at least one power receiving coil, and controls the electronic device 250 to receive the wireless power received in a normal state previously stored in the memory.
  • the first difference value between the first temperature value of the first part and the second temperature value of the second part is calculated as the third temperature value of the first part and the fourth temperature of the second part by the reception of the first wireless power.
  • the second difference value of the values is compared, and when the second difference value exceeds the first difference value as a result of the comparison, the first value for the foreign matter detection operation is adjusted, and the adjusted first value is reflected.
  • An electronic device configured to control the at least one communication circuit to transmit information on the amount of wireless power to the wireless power transmission device may be provided.
  • the at least one processor compares the first temperature value and the third temperature value, and when the third temperature value exceeds the first temperature value, the first difference value and the An electronic device configured to compare the second difference value may be provided.
  • the wireless power transmission apparatus 200 at least one power transmission coil 209 and at least one processor 120 are included, and the at least one processor 120 is the Receives information on the magnitude of the first wireless power received by the wireless power receiving device in which the first value for the foreign matter detection operation is reflected from the wireless power receiving device, and the first value is the wireless power transmitting device 200 A value determined by the wireless power receiving device based on a characteristic value, and confirming information about the amount of the second wireless power transmitted to the wireless power receiving device, and the amount of the wireless power reflecting the first value And performing the foreign matter detection operation based on the information on the magnitude of the second wireless power, and when a foreign matter is detected as a result of the execution of the foreign matter detection operation, the wireless power transmission device is configured to stop transmitting the wireless power ( 200) can be provided.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Selon divers modes de réalisation, l'invention concerne un dispositif électronique comprenant au moins une bobine, au moins un capteur, et au moins un processeur, le ou les processeurs étant configurés pour commander au moins un circuit de communication de façon à demander des informations d'identification concernant un dispositif de transmission d'énergie sans fil à partir du dispositif de transmission d'énergie sans fil, confirmer une valeur caractéristique du dispositif de transmission d'énergie sans fil sur la base du ou des capteurs lorsque les informations d'identification ne sont pas reçues du dispositif de transmission d'énergie sans fil, confirmer que le dispositif de transmission d'énergie sans fil correspond à la valeur caractéristique confirmée, confirmer qu'une première valeur pour une opération de détection de corps étranger correspond au dispositif de transmission d'énergie sans fil confirmé, et transmettre, au dispositif de transmission d'énergie sans fil, des informations concernant la quantité d'énergie sans fil reçue à partir du dispositif de transmission d'énergie sans fil dans lesquelles la première valeur confirmée est réfléchie. D'autres modes de réalisation sont possibles.
PCT/KR2020/009410 2019-07-19 2020-07-17 Dispositif électronique destiné à la réception d'énergie sans fil, et procédé de fonctionnement associé Ceased WO2021015493A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0087818 2019-07-19
KR1020190087818A KR102756716B1 (ko) 2019-07-19 2019-07-19 무선으로 전력을 수신하는 전자 장치와 그 동작 방법

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WO2021015493A1 true WO2021015493A1 (fr) 2021-01-28

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WO (1) WO2021015493A1 (fr)

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KR102285367B1 (ko) 2021-05-20 2021-08-03 장순조 무필터 공기정화 램프
WO2023068515A1 (fr) * 2021-10-22 2023-04-27 삼성전자 주식회사 Dispositif électronique pour commander la charge de batterie sur la base d'un changement de température, et son procédé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140113147A (ko) * 2013-03-15 2014-09-24 주식회사 한림포스텍 무선 전력 전송 시스템에서 이물질 감지 장치 및 방법
KR20160030907A (ko) * 2016-03-02 2016-03-21 엘지이노텍 주식회사 무선전력 송신장치, 무선전력 수신장치, 무선전력 전송 방법, 무선전력 수신 방법, 정보 전송 방법 및 정보 수신 방법
KR20170135492A (ko) * 2016-05-31 2017-12-08 엘지이노텍 주식회사 무선 전력 송신 방법 및 그를 위한 장치
WO2018144392A1 (fr) * 2017-02-02 2018-08-09 Apple Inc. Système de charge sans fil à détection d'objets
KR20190015953A (ko) * 2017-08-07 2019-02-15 엘지이노텍 주식회사 무선 충전을 위한 이물질 검출 방법 및 그를 위한 장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013059236A (ja) * 2011-09-09 2013-03-28 Sony Corp 検知装置、受電装置、送電装置、非接触電力伝送システム及び検知方法
KR102617673B1 (ko) * 2016-12-20 2023-12-26 엘지이노텍 주식회사 이물질 검출 방법 및 그를 위한 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140113147A (ko) * 2013-03-15 2014-09-24 주식회사 한림포스텍 무선 전력 전송 시스템에서 이물질 감지 장치 및 방법
KR20160030907A (ko) * 2016-03-02 2016-03-21 엘지이노텍 주식회사 무선전력 송신장치, 무선전력 수신장치, 무선전력 전송 방법, 무선전력 수신 방법, 정보 전송 방법 및 정보 수신 방법
KR20170135492A (ko) * 2016-05-31 2017-12-08 엘지이노텍 주식회사 무선 전력 송신 방법 및 그를 위한 장치
WO2018144392A1 (fr) * 2017-02-02 2018-08-09 Apple Inc. Système de charge sans fil à détection d'objets
KR20190015953A (ko) * 2017-08-07 2019-02-15 엘지이노텍 주식회사 무선 충전을 위한 이물질 검출 방법 및 그를 위한 장치

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KR20210010203A (ko) 2021-01-27

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