[go: up one dir, main page]

WO2017008532A1 - Alternating current (ac) and direct current (dc) mixed air compressor controller - Google Patents

Alternating current (ac) and direct current (dc) mixed air compressor controller Download PDF

Info

Publication number
WO2017008532A1
WO2017008532A1 PCT/CN2016/077172 CN2016077172W WO2017008532A1 WO 2017008532 A1 WO2017008532 A1 WO 2017008532A1 CN 2016077172 W CN2016077172 W CN 2016077172W WO 2017008532 A1 WO2017008532 A1 WO 2017008532A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
capacitor
power
power supply
air compressor
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/CN2016/077172
Other languages
French (fr)
Chinese (zh)
Inventor
封雷
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.)
Changzhou Globe Co Ltd
Original Assignee
Changzhou Globe 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 Changzhou Globe Co Ltd filed Critical Changzhou Globe Co Ltd
Publication of WO2017008532A1 publication Critical patent/WO2017008532A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P4/00—Arrangements specially adapted for regulating or controlling the speed or torque of electric motors that can be connected to two or more different electric power supplies

Definitions

  • the invention relates to the field of air compressors, in particular to an air compressor controller for AC AC and DC DC mixing.
  • the air compressor control circuit is either AC input power supply of the AC grid or DC input power supply of the lithium battery pack. Both of these methods have limitations in the use case.
  • AC input AC input requires AC input power supply for use, which is inconvenient for outdoor use.
  • Lithium battery pack DC input power supply air compressor because the lithium battery pack capacity is limited, limiting the use time of the air compressor.
  • the present invention provides an air compressor controller which is simple in circuit implementation, low in circuit sharing hardware cost, and high in reliability, capable of mixing AC AC and DC DC.
  • a technical solution adopted by the present invention is to provide an air compressor controller for AC AC and DC DC mixing, and the control circuit in the controller includes:
  • the input circuit switches the power supply mode between the DC DC power supply and the AC AC power supply through a switch
  • a rectifier circuit comprising a rectifier bridge composed of four diodes and a capacitor connected in parallel with the rectifier bridge;
  • the control circuit includes a control center and a power switch.
  • the control center detects the capacitor voltage, and issues a pulse width modulation signal PWM to control the duty ratio, and then provides power to the motor through the power switch.
  • an electromagnetic compatibility circuit EMC is also provided between the input circuit and the rectifier circuit.
  • the DC power when the switching switch is switched to the DC power supply, the DC power absorbs the electromagnetic interference through the EMC circuit, and then inputs the rectifier bridge, charges the capacitor through the rectifier bridge diode, and the control circuit detects the voltage on the capacitor, and outputs the PWM.
  • the signal control power switch supplies power to the motor. During the operation of the motor, electromagnetic interference is returned to the capacitor, and the capacitor is absorbed by the EMC circuit.
  • the AC power when the switch is switched to the AC power supply, the AC power absorbs electromagnetic interference through the EMC circuit, and the input rectifier bridge performs full-wave rectified output DC voltage to charge the capacitor, and the control circuit detects the voltage on the capacitor and outputs The PWM signal controls the power switch to supply power to the motor. During the operation of the motor, electromagnetic interference is returned to the capacitor, and the capacitor is then absorbed by the EMC circuit.
  • the DC power supply is powered by a lithium battery pack.
  • the invention has the beneficial effects that the AC AC and DC DC input power supply of the invention can be switched at will, the control circuit of the AC and DC power supply mixed input is applied to the air compressor, the circuit is simple to implement, the circuit sharing hardware cost is low, and the power switch switching control motor Voltage, high reliability, etc.; users have selectivity in the use of air compressors, and the functional characteristics are not reduced, so that the air compressor application environment has more choices.
  • FIG. 1 is a schematic structural view of a preferred embodiment of an air compressor controller for mixing AC AC and DC DC according to the present invention
  • an embodiment of the present invention includes:
  • An air compressor controller for AC AC and DC DC mixing the control circuit in the controller includes:
  • the input circuit switches the power supply mode between the DC DC power supply and the AC AC power supply through a switch, wherein the DC power supply in the present invention is powered by the lithium battery pack.
  • the power supply is output from the input circuit through the electromagnetic compatibility circuit EMC and enters the rectifier circuit.
  • the rectifier circuit includes a rectifier bridge composed of four diodes and a capacitor connected in parallel with the rectifier bridge.
  • the control circuit includes a control center and a power switch.
  • the control center detects the capacitor voltage, and issues a pulse width modulation signal PWM to control the duty ratio, and then provides power to the motor through the power switch.
  • the EMC circuit function the device has a certain degree of anti-interference to the electromagnetic interference existing in the environment.
  • the DC power is input to the rectifier bridge, and the capacitor is charged through the rectifier bridge diode.
  • the control circuit detects the voltage on the capacitor, and the output PWM signal controls the power switch to supply power to the motor.
  • electromagnetic interference is returned to the capacitor, and the capacitor passes through the EMC circuit.
  • the EMC circuit function is to make the electromagnetic interference generated in the operation of the equipment below a certain limit.
  • the EMC circuit When the switch is switched to AC power, the AC power absorbs electromagnetic interference through the EMC circuit.
  • the EMC circuit function the device has a certain degree of anti-interference to the electromagnetic interference existing in the environment.
  • the input rectifier bridge performs full-wave rectified output DC voltage to charge the capacitor
  • the control circuit detects the voltage on the capacitor, and outputs a PWM signal to control the power switch to supply power to the motor.
  • electromagnetic interference is returned to the capacitor, and the capacitor passes through the EMC circuit. Absorb interference.
  • the function of the EMC circuit is to make the electromagnetic interference generated in the operation of the device below a certain limit.
  • the input switch When the input switch is switched to the DC battery input DC input of the lithium battery pack, the DC voltage of the capacitor is higher than the voltage value of the lithium battery pack. At this time, because the rectifier bridge diode exists, the capacitor voltage cannot be charged to the lithium battery pack, thereby protecting the lithium battery. Package to avoid the danger of overcharge damage due to reverse charging of capacitors.
  • the AC AC and DC DC input power supply of the invention can be switched at will, and the control circuit of the AC and DC power supply mixed input is applied to the air compressor, the circuit is simple to implement, the circuit sharing hardware cost is low, and the power switch is switched. Control motor voltage, high reliability; users have selectivity in the use of air compressors, and the functional characteristics are not reduced, so that the air compressor application environment has more choices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Control Of Ac Motors In General (AREA)
  • Rectifiers (AREA)

Abstract

An alternating current (AC) and direct current (DC) mixed air compressor controller. A control circuit in the controller successively comprises: an input circuit switching a power supply mode between direct current (DC) power supply and alternating current (AC) power supply via a changeover switch; a rectification circuit comprising a rectification bridge composed of four diodes and a capacitor connected in parallel with the rectification bridge; and a control circuit comprising a control centre and a power switch, wherein the control centre detects a capacitor voltage and sends a pulse width modulation (PWM) signal to control a duty ratio, and then provides operation power for an electrical motor via the power switch. By means of the controller, alternating current (AC) and direct current (DC) input power sources can be switched as desired, and the circuit is easy to implement.

Description

一种交流AC和直流DC混用的空压机控制器Air compressor controller for AC AC and DC DC mixing 技术领域Technical field

本发明涉及空压机领域，特别是涉及一种交流AC和直流DC混用的空压机控制器。The invention relates to the field of air compressors, in particular to an air compressor controller for AC AC and DC DC mixing.

背景技术Background technique

目前空压机控制电路要么是交流电网AC输入供电，要么是锂电池包DC输入供电。这两种方式都存在使用场合的限制。At present, the air compressor control circuit is either AC input power supply of the AC grid or DC input power supply of the lithium battery pack. Both of these methods have limitations in the use case.

交流电网AC输入要求使用场合必须有AC输入供电，对户外使用不方便。锂电池包DC输入供电空压机，因为锂电池包容量有限，限制了空压机的使用时间。AC input AC input requires AC input power supply for use, which is inconvenient for outdoor use. Lithium battery pack DC input power supply air compressor, because the lithium battery pack capacity is limited, limiting the use time of the air compressor.

发明内容Summary of the invention

为解决上述技术问题，本发明提供一种电路实现简单，电路共用硬件成本低，可靠性高能够交流AC和直流DC混用的空压机控制器。In order to solve the above technical problem, the present invention provides an air compressor controller which is simple in circuit implementation, low in circuit sharing hardware cost, and high in reliability, capable of mixing AC AC and DC DC.

本发明采用的一个技术方案是：提供一种交流AC和直流DC混用的空压机控制器，该控制器内的控制电路依次包括：A technical solution adopted by the present invention is to provide an air compressor controller for AC AC and DC DC mixing, and the control circuit in the controller includes:

输入电路，通过一切换开关，使供电方式在直流DC供电和交流AC供电之间切换；The input circuit switches the power supply mode between the DC DC power supply and the AC AC power supply through a switch;

整流电路，包括四个二极管组成的整流桥和与整流桥并联的电容； a rectifier circuit comprising a rectifier bridge composed of four diodes and a capacitor connected in parallel with the rectifier bridge;

控制电路，包括控制中心和功率开关，控制中心检测电容电压，并发出脉冲宽度调制信号PWM控制占空比，再通过功率开关给电机提供运行动力。The control circuit includes a control center and a power switch. The control center detects the capacitor voltage, and issues a pulse width modulation signal PWM to control the duty ratio, and then provides power to the motor through the power switch.

在本发明一个较佳实施例中，输入电路和整流电路之间还设有电磁兼容性电路EMC。In a preferred embodiment of the invention, an electromagnetic compatibility circuit EMC is also provided between the input circuit and the rectifier circuit.

在本发明一个较佳实施例中，当切换开关切换到直流供电时，直流电经过EMC电路吸收电磁干扰，再输入整流桥，通过整流桥二极管给电容充电，控制电路检测到电容上电压，输出PWM信号控制功率开关给电机供电运行，电机运行过程中会产生电磁干扰反馈回电容，电容再经过EMC电路吸收干扰。In a preferred embodiment of the present invention, when the switching switch is switched to the DC power supply, the DC power absorbs the electromagnetic interference through the EMC circuit, and then inputs the rectifier bridge, charges the capacitor through the rectifier bridge diode, and the control circuit detects the voltage on the capacitor, and outputs the PWM. The signal control power switch supplies power to the motor. During the operation of the motor, electromagnetic interference is returned to the capacitor, and the capacitor is absorbed by the EMC circuit.

在本发明一个较佳实施例中，当切换开关切换到交流供电时，交流电经过EMC电路吸收电磁干扰，输入整流桥进行全波整流输出直流电压给电容充电，控制电路检测到电容上电压，输出PWM信号控制功率开关给电机供电运行，电机运行过程中会产生电磁干扰反馈回电容，电容再经过EMC电路吸收干扰。In a preferred embodiment of the present invention, when the switch is switched to the AC power supply, the AC power absorbs electromagnetic interference through the EMC circuit, and the input rectifier bridge performs full-wave rectified output DC voltage to charge the capacitor, and the control circuit detects the voltage on the capacitor and outputs The PWM signal controls the power switch to supply power to the motor. During the operation of the motor, electromagnetic interference is returned to the capacitor, and the capacitor is then absorbed by the EMC circuit.

在本发明一个较佳实施例中，所述直流供电是通过锂电池包供电。In a preferred embodiment of the invention, the DC power supply is powered by a lithium battery pack.

本发明的有益效果是：本发明交流AC和直流DC输入电源可随意切换，交、直流电源混合输入的控制电路应用于空压机，电路实现简单，电路共用硬件成本低，功率开关切换控制电机电压，可靠性高等；用户在空压机使用电源上有可选择性，且功能特性不降低，使空压机应用环境有更多选择。The invention has the beneficial effects that the AC AC and DC DC input power supply of the invention can be switched at will, the control circuit of the AC and DC power supply mixed input is applied to the air compressor, the circuit is simple to implement, the circuit sharing hardware cost is low, and the power switch switching control motor Voltage, high reliability, etc.; users have selectivity in the use of air compressors, and the functional characteristics are not reduced, so that the air compressor application environment has more choices.

附图说明 DRAWINGS

为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained according to these drawings without any creative work, wherein:

图1是本发明交流AC和直流DC混用的空压机控制器一较佳实施例的结构示意图；1 is a schematic structural view of a preferred embodiment of an air compressor controller for mixing AC AC and DC DC according to the present invention;

具体实施方式detailed description

下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

请参阅图1，本发明实施例包括：Referring to FIG. 1, an embodiment of the present invention includes:

一种交流AC和直流DC混用的空压机控制器，该控制器内的控制电路依次包括：An air compressor controller for AC AC and DC DC mixing, the control circuit in the controller includes:

输入电路，通过一切换开关，使供电方式在直流DC供电和交流AC供电之间切换；其中，本发明中的直流供电是通过锂电池包供电。The input circuit switches the power supply mode between the DC DC power supply and the AC AC power supply through a switch, wherein the DC power supply in the present invention is powered by the lithium battery pack.

电源从输入电路输出经过电磁兼容性电路EMC，进入整流电路。The power supply is output from the input circuit through the electromagnetic compatibility circuit EMC and enters the rectifier circuit.

整流电路，包括四个二极管组成的整流桥和与整流桥并联的电容。 The rectifier circuit includes a rectifier bridge composed of four diodes and a capacitor connected in parallel with the rectifier bridge.

控制电路，包括控制中心和功率开关，控制中心检测电容电压，并发出脉冲宽度调制信号PWM控制占空比，再通过功率开关给电机提供运行动力。The control circuit includes a control center and a power switch. The control center detects the capacitor voltage, and issues a pulse width modulation signal PWM to control the duty ratio, and then provides power to the motor through the power switch.

当切换开关切换到直流供电时，直流电经过EMC电路吸收电磁干扰，此时EMC电路功能：使设备对所在环境中存在的电磁干扰具有一定的抗干扰度。直流电再输入整流桥，通过整流桥二极管给电容充电，控制电路检测到电容上电压，输出PWM信号控制功率开关给电机供电运行，电机运行过程中会产生电磁干扰反馈回电容，电容再经过EMC电路吸收干扰，此时EMC电路功能是使设备工作中产生的电磁干扰低于一定的限值。When the switch is switched to DC power supply, the DC power absorbs electromagnetic interference through the EMC circuit. At this time, the EMC circuit function: the device has a certain degree of anti-interference to the electromagnetic interference existing in the environment. The DC power is input to the rectifier bridge, and the capacitor is charged through the rectifier bridge diode. The control circuit detects the voltage on the capacitor, and the output PWM signal controls the power switch to supply power to the motor. During the operation of the motor, electromagnetic interference is returned to the capacitor, and the capacitor passes through the EMC circuit. Absorbing interference, the EMC circuit function is to make the electromagnetic interference generated in the operation of the equipment below a certain limit.

当切换开关切换到交流供电时，交流电经过EMC电路吸收电磁干扰，此时EMC电路功能：使设备对所在环境中存在的电磁干扰具有一定的抗干扰度。输入整流桥进行全波整流输出直流电压给电容充电，控制电路检测到电容上电压，输出PWM信号控制功率开关给电机供电运行，电机运行过程中会产生电磁干扰反馈回电容，电容再经过EMC电路吸收干扰。此时EMC电路功能是使设备工作中产生的电磁干扰低于一定的限值。When the switch is switched to AC power, the AC power absorbs electromagnetic interference through the EMC circuit. At this time, the EMC circuit function: the device has a certain degree of anti-interference to the electromagnetic interference existing in the environment. The input rectifier bridge performs full-wave rectified output DC voltage to charge the capacitor, the control circuit detects the voltage on the capacitor, and outputs a PWM signal to control the power switch to supply power to the motor. During the operation of the motor, electromagnetic interference is returned to the capacitor, and the capacitor passes through the EMC circuit. Absorb interference. At this time, the function of the EMC circuit is to make the electromagnetic interference generated in the operation of the device below a certain limit.

当输入开关在交流AC输入切换到锂电池包直流DC输入瞬间，电容直流电压高于锂电池包电压值，此时因为整流桥二极管存在，电容电压无法向锂电池包充电，起到保护锂电池包，避免因电容反向充电，过充损坏的危险。When the input switch is switched to the DC battery input DC input of the lithium battery pack, the DC voltage of the capacitor is higher than the voltage value of the lithium battery pack. At this time, because the rectifier bridge diode exists, the capacitor voltage cannot be charged to the lithium battery pack, thereby protecting the lithium battery. Package to avoid the danger of overcharge damage due to reverse charging of capacitors.

本发明交流AC和直流DC输入电源可随意切换，交、直流电源混合输入的控制电路应用于空压机，电路实现简单，电路共用硬件成本低，功率开关切换 控制电机电压，可靠性高等；用户在空压机使用电源上有可选择性，且功能特性不降低，使空压机应用环境有更多选择。The AC AC and DC DC input power supply of the invention can be switched at will, and the control circuit of the AC and DC power supply mixed input is applied to the air compressor, the circuit is simple to implement, the circuit sharing hardware cost is low, and the power switch is switched. Control motor voltage, high reliability; users have selectivity in the use of air compressors, and the functional characteristics are not reduced, so that the air compressor application environment has more choices.

以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本发明的专利保护范围内。 The above is only the embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification of the present invention, or directly or indirectly applied to other related technical fields, The same is included in the scope of patent protection of the present invention.

Claims (5)

一种交流AC和直流DC混用的空压机控制器，其特征在于，该控制器内的控制电路依次包括：An air compressor controller for AC AC and DC DC mixing, wherein the control circuit in the controller comprises: 输入电路，通过一切换开关，使供电方式在直流DC供电和交流AC供电之间切换；The input circuit switches the power supply mode between the DC DC power supply and the AC AC power supply through a switch; 整流电路，包括四个二极管组成的整流桥和与整流桥并联的电容；a rectifier circuit comprising a rectifier bridge composed of four diodes and a capacitor connected in parallel with the rectifier bridge; 控制电路，包括控制中心和功率开关，控制中心检测电容电压，并发出脉冲宽度调制信号PWM控制占空比，再通过功率开关给电机提供运行动力。The control circuit includes a control center and a power switch. The control center detects the capacitor voltage, and issues a pulse width modulation signal PWM to control the duty ratio, and then provides power to the motor through the power switch. 根据权利要求1所述的交流AC和直流DC混用的空压机控制器，其特征在于，输入电路和整流电路之间还设有电磁兼容性电路EMC。The air compressor controller for alternating AC and DC DC according to claim 1, wherein an electromagnetic compatibility circuit EMC is further disposed between the input circuit and the rectifier circuit. 根据权利要求2所述的交流AC和直流DC混用的空压机控制器，其特征在于，当切换开关切换到直流供电时，直流电经过EMC电路吸收电磁干扰，再输入整流桥，通过整流桥二极管给电容充电，控制电路检测到电容上电压，输出PWM信号控制功率开关给电机供电运行，电机运行过程中会产生电磁干扰反馈回电容，电容再经过EMC电路吸收干扰。The air compressor controller for AC AC and DC DC hybrid according to claim 2, wherein when the switching switch is switched to the DC power supply, the DC power is absorbed by the EMC circuit, and then input to the rectifier bridge through the rectifier bridge diode. The capacitor is charged, the control circuit detects the voltage on the capacitor, and the output PWM signal controls the power switch to supply power to the motor. During the operation of the motor, electromagnetic interference is returned to the capacitor, and the capacitor is absorbed by the EMC circuit. 根据权利要求2所述的交流AC和直流DC混用的空压机控制器，其特征在于，当切换开关切换到交流供电时，交流电经过EMC电路吸收电磁干扰，输入整流桥进行全波整流输出直流电压给电容充电，控制电路检测到电容上电压，输出PWM信号控制功率开关给电机供电运行，电机运行过程中会产生电磁干扰反馈回电容，电容再经过EMC电路吸收干扰。The air compressor controller for AC AC and DC DC hybrid according to claim 2, wherein when the switching switch is switched to the AC power supply, the AC power absorbs electromagnetic interference through the EMC circuit, and the input rectifier bridge performs full-wave rectification output DC. The voltage charges the capacitor, the control circuit detects the voltage on the capacitor, and the output PWM signal controls the power switch to supply power to the motor. During the operation of the motor, electromagnetic interference is returned to the capacitor, and the capacitor is absorbed by the EMC circuit. 根据权利要求1-4任一所述的交流AC和直流DC混用的空压机控制器，其特征在于，所述直流供电是通过锂电池包供电。 The air compressor controller for AC AC and DC DC hybrid according to any one of claims 1 to 4, wherein the DC power supply is powered by a lithium battery pack.
PCT/CN2016/077172 2015-07-10 2016-03-23 Alternating current (ac) and direct current (dc) mixed air compressor controller Ceased WO2017008532A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510400713.1 2015-07-10
CN201510400713.1A CN104993753A (en) 2015-07-10 2015-07-10 Air compressor controller based on mixed usage of alternating current and direct current

Publications (1)

Publication Number Publication Date
WO2017008532A1 true WO2017008532A1 (en) 2017-01-19

Family

ID=54305519

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/077172 Ceased WO2017008532A1 (en) 2015-07-10 2016-03-23 Alternating current (ac) and direct current (dc) mixed air compressor controller

Country Status (2)

Country Link
CN (1) CN104993753A (en)
WO (1) WO2017008532A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104993753A (en) * 2015-07-10 2015-10-21 常州格力博有限公司 Air compressor controller based on mixed usage of alternating current and direct current
CN111341517A (en) * 2020-04-22 2020-06-26 上海电机系统节能工程技术研究中心有限公司 Holding brake release device and motor
CN116381440A (en) * 2023-03-10 2023-07-04 南京航空航天大学 Multifunctional portable silicon carbide device characteristic tester
CN117686754B (en) * 2024-02-01 2024-04-26 忱芯科技(上海)有限公司 Current source for bipolar degradation test of silicon carbide power semiconductor device
CN119519105A (en) * 2024-11-29 2025-02-25 深圳市英维克科技股份有限公司 Power supply control system of air conditioner and air conditioner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241217A (en) * 1991-11-07 1993-08-31 Premier Power, Inc. UPS with input commutation between AC and DC sources of power
CN103107755A (en) * 2013-02-20 2013-05-15 刘德志 Pulse-width modulation (PWM) type speed changing device of direct-current (DC) motor
CN104539042A (en) * 2014-12-11 2015-04-22 华为技术有限公司 Uninterrupted power system
CN104993753A (en) * 2015-07-10 2015-10-21 常州格力博有限公司 Air compressor controller based on mixed usage of alternating current and direct current

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2514543Y (en) * 2001-10-10 2002-10-02 协禧电机股份有限公司 DC brushless motor control circuit for AC power
KR101157826B1 (en) * 2004-10-26 2012-06-22 삼성전자주식회사 Apparatus And Method Of Controlling Motor In A Washing Machine
CN103259469A (en) * 2013-04-19 2013-08-21 杭州微光电子股份有限公司 Electronic commutation brushless direct current and single phase fan circuit and control method thereof
CN203770065U (en) * 2013-12-23 2014-08-13 常州格力博有限公司 Alternating current and direct current air compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241217A (en) * 1991-11-07 1993-08-31 Premier Power, Inc. UPS with input commutation between AC and DC sources of power
CN103107755A (en) * 2013-02-20 2013-05-15 刘德志 Pulse-width modulation (PWM) type speed changing device of direct-current (DC) motor
CN104539042A (en) * 2014-12-11 2015-04-22 华为技术有限公司 Uninterrupted power system
CN104993753A (en) * 2015-07-10 2015-10-21 常州格力博有限公司 Air compressor controller based on mixed usage of alternating current and direct current

Also Published As

Publication number Publication date
CN104993753A (en) 2015-10-21

Similar Documents

Publication Publication Date Title
CN102088116B (en) Heating circuit of battery
CN104065157B (en) Uninterruptible power supply with improved power supply reliability
JP3219852U (en) Bidirectional in-vehicle charge / discharge system
WO2017008532A1 (en) Alternating current (ac) and direct current (dc) mixed air compressor controller
Musavi et al. A phase shifted semi-bridgeless boost power factor corrected converter for plug in hybrid electric vehicle battery chargers
CN103730940B (en) Onboard charger of electric car
US10396676B2 (en) Bidirectional DC-DC converter and control method therefor
CN105591459A (en) Voltage tracking retainer on the basis of single-phase inversion
WO2016049793A1 (en) Portable multifunctional outdoor power source
WO2015096613A1 (en) Online interactive uninterruptible power supply and control method therefor
CN107294147A (en) Onboard charger and vehicle
CN107800185B (en) Online uninterrupted power supply
CN103855776B (en) A kind of equalizing charge system being applied to automobile power cell
Anand et al. Design of single stage integrated bridgeless-boost PFC converter
CN205231837U (en) Voltage track -hold circuit based on single -phase contravariant
CN103326650A (en) Self-shunt excitation system of electric generator
CN103944412B (en) Control method and device for UPS and UPS
JP6842545B2 (en) Low emissivity uninterruptible power supply
CN105281401A (en) Novel storage battery charging and discharging system
CN104009528A (en) Storage battery charging circuit and charging method thereof
Choi et al. Parallel system of bidirectional DC/DC converter for improvement of transient response in DC distribution system for building applications
CN108011538B (en) Low-power high-frequency bidirectional AC-DC single-tube converter and wireless charging method
JP2020191771A (en) Electric belongings, electric tools, mobiles and mobile devices
CN214205340U (en) Single-tube resonant inverter
JP2020191770A (en) Charging system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16823679

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16823679

Country of ref document: EP

Kind code of ref document: A1