[go: up one dir, main page]

WO2021251684A1 - Dispositif de commande de gradation et procédé - Google Patents

Dispositif de commande de gradation et procédé Download PDF

Info

Publication number
WO2021251684A1
WO2021251684A1 PCT/KR2021/006935 KR2021006935W WO2021251684A1 WO 2021251684 A1 WO2021251684 A1 WO 2021251684A1 KR 2021006935 W KR2021006935 W KR 2021006935W WO 2021251684 A1 WO2021251684 A1 WO 2021251684A1
Authority
WO
WIPO (PCT)
Prior art keywords
current
unit
control
bridge circuit
dimming
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/KR2021/006935
Other languages
English (en)
Korean (ko)
Inventor
이영재
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.)
SeojinInc
Original Assignee
SeojinInc
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 SeojinInc filed Critical SeojinInc
Publication of WO2021251684A1 publication Critical patent/WO2021251684A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Definitions

  • It relates to a dimming control apparatus and method for controlling the illuminance of lighting.
  • the dimming control technology using pulse width modulation performs dimming control by applying a pulse width modulation signal to a control circuit including a MOSFET.
  • a pulse width modulation signal when dimming control is performed using a pulse width modulation signal, leakage current is generated even when the power is turned off, so that heat is generated in the MOSFET control circuit and the lifespan of the circuit is shortened.
  • An object of the present invention is to provide a dimming control device and method for blocking leakage current by adding a relay to a dimming control device using pulse width control.
  • the dimming control device includes a power supply for supplying an alternating current; a lighting unit including one or more lights; a bridge circuit unit receiving current from the power supply unit and supplying current to the control voltage adjusting unit and the current control unit through a bridge circuit including one or more diodes; a current controller for controlling the current received from the bridge circuit unit and supplying it to the lighting unit using one or more transistors; a control voltage adjusting unit receiving a current from the bridge circuit unit and supplying a control signal of a constant voltage to the current control unit; a dimming signal receiver configured to receive a pulse-width modulated (PWM) dimming signal and control the current of the control signal supplied to the current controller; and a relay circuit unit including a relay connected to the control voltage adjusting unit.
  • PWM pulse-width modulated
  • the power supply may include two terminals for supplying single-phase power, a first terminal may be connected to the bridge circuit unit, and a second terminal may be connected to the lighting unit.
  • the transistor may be a Metal-Oxide Semiconductor Field-Effect Transistor (MOSFET), a control signal of the control voltage regulator may be supplied to a gate of the MOSFET, and an output of the bridge circuit may be supplied to a drain of the MOSFET.
  • MOSFET Metal-Oxide Semiconductor Field-Effect Transistor
  • the source of the MOSFET is connected to the bridge circuit unit, and the current supplied from the bridge circuit unit to the drain of the MOSFET may be supplied to the lighting unit through the bridge circuit unit connected to the source of the MOSFET.
  • the dimming signal receiver includes one or more photo couplers, the photo couplers receive a dimming signal, and a collector of the photo coupler may be connected to the gate of the MOSFET.
  • the emitter of the photocoupler may be connected to the bridge circuit unit, and the current of the control signal may be input to the collector of the photocoupler connected to the gate of the MOSFET, and may be output to the emitter of the photocoupler and input to the bridge circuit unit.
  • the control voltage regulator may include one or more resistors, one or more capacitors, and one or more Zener diodes, and may generate a constant voltage control signal using a breakdown voltage characteristic of the Zener diodes.
  • the relay may control the current supplied from the bridge circuit unit to the control voltage adjusting unit.
  • the relay may control the current supplied from the control voltage adjuster to the dimming signal receiver.
  • the relay connects the circuit when the power is ON, and can break the circuit when the power is OFF.
  • the dimming signal may be applied after the relay connects the circuit.
  • the relay blocks the circuit when the PWM duty ratio of the dimming signal is 0% to a predetermined %, and connects the circuit when the PWM duty ratio of the dimming signal is in the predetermined % to 100%, and the predetermined % is the minimum required according to one or more lighting characteristics It may be determined based on the operating current.
  • FIG. 1 is a block diagram of a dimming control apparatus according to an embodiment.
  • FIG. 2 is a circuit diagram of a dimming control apparatus according to an exemplary embodiment.
  • FIG. 1 is a block diagram of a dimming control apparatus according to an embodiment.
  • the dimming control device 100 includes a power supply unit 110 for supplying an alternating current, a lighting unit 120 including one or more lights, a bridge circuit unit 130 for rectifying an alternating current using a bridge circuit, A current control unit 140 for controlling the current supplied to the lighting unit 120, a control voltage adjusting unit 150 for generating a constant voltage control signal, a dimming signal receiving unit 160 for receiving a dimming signal, and a relay circuit unit for connecting and blocking circuits (170).
  • the power supply unit 110 may include two terminals for supplying single-phase power.
  • the first terminal may be connected to the bridge circuit unit 130
  • the second terminal may be connected to the lighting unit 120 .
  • the bridge circuit unit 130 may receive current from the power supply unit 110 and supply current to the control voltage adjuster 150 and the current controller 140 .
  • the bridge circuit unit 130 may supply a portion of the current supplied from the power supply unit 110 to the control voltage adjuster 150 .
  • the bridge circuit unit 130 may limit the amount of current supplied to the control voltage adjuster 150 to a predetermined value or less by using one or more resistors and one or more diodes.
  • the bridge circuit unit 130 may supply a portion of the current supplied from the power supply unit 110 to the current control unit 140 .
  • the current supplied to the current control unit 140 may be supplied to the lighting unit 120 according to the dimming signal received by the dimming signal receiving unit 160 and the On/Off state of the relay included in the relay circuit unit 170 . .
  • the bridge circuit unit 130 may include a bridge circuit including one or more diodes.
  • the bridge circuit unit 130 may rectify an alternating current using a bridge circuit including one or more diodes and supply it to the control voltage adjuster 150 and the current controller 140 .
  • the current controller 140 may control the current received from the bridge circuit unit using one or more transistors and supply it to the lighting unit.
  • the transistor may be a Metal-Oxide Semiconductor Field-Effect Transistor (MOSFET).
  • MOSFET Metal-Oxide Semiconductor Field-Effect Transistor
  • control signal generated by the control voltage regulator 150 may be supplied to the gate of the MOSFET.
  • the control signal may operate as a gate voltage.
  • the control signal may be supplied to the gate through the relay circuit unit 170 . Accordingly, the gate voltage may be controlled according to the operation of the relay.
  • the current of the control signal may be controlled by the dimming signal receiver 160 .
  • the dimming signal receiver 160 may control the current according to the dimming signal, and through this, the current flow of the control signal may be controlled to control the voltage at the gate.
  • the output of the bridge circuit unit 130 may be supplied to the drain of the MOSFET.
  • the source of the MOSFET may be connected to the bridge circuit unit.
  • the current supplied from the bridge circuit unit 130 to the drain of the MOSFET may be supplied to the lighting unit 120 through the bridge circuit unit 130 connected to the source of the MOSFET.
  • the bridge circuit unit 130 may include a bridge circuit including four diodes, and a drain of the MOSFET and a source of the MOSFET may be connected to different nodes of the bridge circuit.
  • control voltage adjusting unit 150 may receive a current from the bridge circuit unit 130 and supply a constant voltage control signal to the current controller 140 .
  • control voltage adjusting unit 150 may include a Zener diode, and may generate a constant voltage control signal using a breakdown voltage characteristic of the Zener diode.
  • the dimming signal receiver 160 may receive a pulse-width modulation (PWM) dimming signal to control the current of the control signal supplied to the current controller 140 .
  • PWM pulse-width modulation
  • the dimming signal receiver 160 may include a photo coupler.
  • the dimming signal receiver 160 may receive a PWM signal for dimming control as an input of the photo coupler.
  • the collector of the photo coupler may be connected to the gate of the MOSFET.
  • the collector of the photo coupler may be connected to the constant voltage control signal output from the control voltage adjusting unit 150 .
  • the photocoupler may control the gate voltage of the MOSFET by controlling the current of the constant voltage control signal according to the dimming signal.
  • the current of the control signal may be input to the collector of the photo coupler connected to the gate of the MOSFET, output to the emitter of the photo coupler, and input to the bridge circuit unit.
  • the control signal output from the control voltage adjusting unit 150 may be transmitted to the lighting unit 120 through the photo coupler and bridge circuit unit 130 .
  • the relay circuit unit 170 may include a relay connected to the control voltage adjuster.
  • the relay circuit unit 170 may control the current supplied from the bridge circuit unit to the control voltage adjuster.
  • the relay circuit unit 170 may control the current supplied from the control voltage adjuster 150 to at least one of the dimming signal receiver and the current controller 140 .
  • the relay included in the relay circuit unit 170 may connect a circuit when power is ON, and may block the circuit when power is OFF.
  • the dimming signal may be applied after the relay connects the circuit. In this case, after the circuit is connected, the time when the circuit is connected is included.
  • the relay included in the relay circuit unit 170 blocks the circuit when the PWM duty ratio of the dimming signal is 0% to a predetermined %, and connects the circuit when the PWM duty ratio of the dimming signal is in the predetermined % to 100% can For example, when the PWM duty ratio of the dimming signal is less than or equal to a predetermined %, the illuminance of the lighting may be less than or equal to a predetermined value or the lighting may not operate normally. In other words, when the user sets the PWM duty ratio of the dimming signal to a predetermined % or less, the user may intend to turn off the lighting. can do it
  • the user may have an intention to turn on the lighting.
  • a control circuit capable of controlling the relay according to the PWM duty ratio of the dimming signal may be added.
  • the predetermined percentage may be determined based on a minimum operating current required according to one or more lighting characteristics. For example, in the case of an LED, when a current less than a predetermined current is supplied, the LED cannot operate normally. For example, when the PWM duty ratio of the dimming signal is 10% or less, the LED may be turned off due to insufficient current.
  • FIG. 2 is a circuit diagram of a dimming control apparatus according to an exemplary embodiment.
  • the dimming control device 200 includes a power supply unit 210 for supplying an alternating current, a lighting unit 220 including one or more lights, a bridge circuit unit 230 for rectifying an alternating current using a bridge circuit, A current control unit 240 for controlling the current supplied to the lighting unit 220, a control voltage adjusting unit 250 for generating a constant voltage control signal, a dimming signal receiving unit 260 for receiving a dimming signal, and a relay circuit unit for connecting and blocking circuits (270).
  • a power supply unit 210 for supplying an alternating current
  • a bridge circuit unit 230 for rectifying an alternating current using a bridge circuit
  • a current control unit 240 for controlling the current supplied to the lighting unit 220
  • a control voltage adjusting unit 250 for generating a constant voltage control signal
  • a dimming signal receiving unit 260 for receiving a dimming signal
  • a relay circuit unit for connecting and blocking circuits (270).
  • the power supply unit 210 may include two terminals for supplying single-phase power.
  • the first terminal AC R may be connected to the bridge circuit unit 230
  • the second terminal AC N may be connected to the lighting unit 220 .
  • the bridge circuit unit 230 may receive a current from the power supply unit 210 and supply current to the control voltage adjuster 250 and the current controller 240 .
  • the bridge circuit unit 230 may include a bridge circuit including four diodes D2, D3, D4, and D5.
  • the bridge circuit unit 230 may receive current from the power supply unit 210 through a node between the diodes D2 and D4 .
  • the current passing through the bridge circuit may supply the current to the control voltage adjusting unit 250 and the current controlling unit 240 through the node between the diodes D2 and D5 .
  • the bridge circuit unit 230 may supply a portion of the current supplied from the power supply unit 210 to the control voltage adjuster 250 .
  • the bridge circuit unit 230 may limit the amount of current supplied to the control voltage adjuster 250 to a predetermined value or less by using one or more resistors and one or more diodes.
  • the current passing through the bridge circuit may supply the current to the control voltage adjusting unit 250 through the diode D1 and the resistor R2.
  • the diode D1 and the resistor R2 may limit the current supplied to the control voltage adjusting unit 250 .
  • the bridge circuit unit 230 may supply a portion of the current supplied from the power supply unit 210 to the current control unit 240 .
  • the current passing through the bridge circuit may be supplied to the current controller 240 .
  • the current controller 240 may include one MOSFET Q1 , and the current supplied through the bridge circuit may be supplied to the drain Q1 - 2 of the MOSFET Q1 .
  • the current supplied to the current control unit 240 is the dimming signal PWM received by the dimming signal receiving unit 260 and the lighting unit 220 according to the ON/OFF state of the relay K1 included in the relay circuit unit 270 . ) can be supplied.
  • the bridge circuit unit 230 may include a bridge circuit including one or more diodes.
  • the bridge circuit unit 230 may rectify an alternating current using a bridge circuit including one or more diodes and supply it to the control voltage adjuster 250 and the current controller 240 .
  • the current controller 240 may control the current received from the bridge circuit unit using one or more transistors and supply it to the lighting unit.
  • the transistor may be a Metal-Oxide Semiconductor Field-Effect Transistor (MOSFET).
  • MOSFET Metal-Oxide Semiconductor Field-Effect Transistor
  • the current controller 240 includes a MOSFET Q1.
  • the control signal generated by the control voltage regulator 250 may be supplied to the gate Q1-1 of the MOSFET Q1.
  • the control signal may operate as a gate voltage.
  • the control signal may be supplied to the gate Q1-1 through the relay circuit unit 270 .
  • the gate voltage may be controlled according to the operation of the relay K1.
  • the terminals 5 and 6 of the relay K1 control the flow of the control signal by connecting and blocking the terminals LR3 and LR4 connected from the control voltage adjusting unit 250 to the current controlling unit 240 . can do.
  • the current of the control signal may be controlled by the dimming signal receiver 260 .
  • the dimming signal receiver 260 may control the current according to the dimming signal, and through this, the current flow of the control signal may be controlled to control the voltage at the gate.
  • the current may be controlled by the photo coupler U1 as the control signal. Accordingly, the current of the control signal may be controlled based on the dimming signal PWM.
  • the output of the bridge circuit unit 230 may be supplied to the drain Q1 - 2 of the MOSFET.
  • the sources Q1-3 of the MOSFET may be connected to the bridge circuit unit 230 .
  • the current supplied from the bridge circuit unit 230 to the drain Q1-2 of the MOSFET may be supplied to the lighting unit 220 through the bridge circuit unit 230 connected to the source Q1-3 of the MOSFET.
  • the bridge circuit unit 230 may include a bridge circuit including four diodes D2, S3, S4, and S5, and the drain Q1-2 of the MOSFET and the source Q1-3 of the MOSFET are Each of the bridge circuits may be connected to a different node.
  • the drain Q1-2 of the MOSFET may be connected to the node between the diodes D2 and D5, and the source Q1-3 of the MOSFET may be connected to the node between the diodes D3 and D4.
  • the control voltage adjusting unit 250 may receive a current from the bridge circuit unit 230 and supply a constant voltage control signal to the current controller 240 .
  • the control voltage adjusting unit 250 may include one or more resistors R1 , one or more capacitors C1 and C2 , and a Zener diode D6 .
  • the capacitor C2 may invert the current supplied through LR1.
  • a constant DC voltage may be generated through the current supplied through LR1 and C2.
  • the control voltage regulator 250 or the zener diode D6 may generate a constant voltage control signal by using the breakdown voltage characteristic.
  • the dimming signal receiver 260 may receive a pulse-width modulated (PWM) dimming signal to control the current of the control signal supplied to the current controller 240 .
  • the dimming signal receiver 260 may include a photo coupler U1.
  • the dimming signal receiver 260 may receive a PWM signal for dimming control as an input of the photo coupler U1 .
  • the collector U1-4 of the photo coupler may be connected to the gate Q1-1 of the MOSFET.
  • the collectors U1-4 of the photo coupler may be connected to a constant voltage control signal output from the control voltage adjusting unit 250 .
  • the photocoupler U1 may control the gate voltage of the MOSFET Q1 by controlling the current of the constant voltage control signal according to the dimming signal.
  • the current of the control signal is input to the collector (U1-4) of the photocoupler connected to the gate (Q1-1) of the MOSFET, is output to the emitter (U1-3) of the photocoupler, and is input to the bridge circuit unit can be Through this, the control signal output from the control voltage adjusting unit 250 may be transmitted to the lighting unit 220 through the photo coupler and bridge circuit unit 230 .
  • the relay circuit unit 270 may include a relay connected to the control voltage adjusting unit 250 .
  • the relay circuit unit 270 may control the current supplied from the bridge circuit unit 230 to the control voltage adjusting unit 250 .
  • terminals 3 and 4 of the relay K1 may control current by connecting and blocking the terminal LR1 of the bridge circuit unit and the terminal LR2 of the control voltage adjusting unit 250 .
  • the relay circuit unit 270 may control the current supplied from the control voltage adjuster 250 to at least one of the dimming signal receiver and the current controller 240 .
  • the relay K1 included in the relay circuit unit 270 may connect a circuit when power is ON, and may block the circuit when power is OFF.
  • the dimming signal may be applied after the relay K1 connects the circuit. In this case, after the circuit is connected, the time when the circuit is connected is included.
  • the relay K1 included in the relay circuit unit 270 blocks the circuit when the PWM duty ratio of the dimming signal is 0% to a predetermined %, and when the PWM duty ratio of the dimming signal is a predetermined % to 100% circuits can be connected.
  • the PWM duty ratio of the dimming signal is less than or equal to a predetermined %
  • the illuminance of the lighting may be less than or equal to a predetermined value or the lighting may not operate normally.
  • the user sets the PWM duty ratio of the dimming signal to a predetermined % or less, it can be determined that the user wants to turn off the lighting. to turn off the light.
  • the lighting when the PWM duty ratio of the dimming signal is less than or equal to a predetermined %, the lighting may be turned off due to a lack of current according to lighting characteristics. In this case, although the dimming signal is applied and current flows in the circuit, the lighting is turned off and the user may not recognize the current flowing in the circuit. In addition, it may have an adverse effect of wasting unnecessary power and reducing the lifespan of the circuit. Therefore, when the PWM duty ratio of the dimming signal is less than or equal to a predetermined %, this phenomenon can be prevented by turning off the relay K1.
  • the PWM duty ratio of the dimming signal when the PWM duty ratio of the dimming signal is greater than or equal to a predetermined %, it can be determined that the lighting operates normally or that the user wants to turn on the light. You can turn on the light by controlling it to be On. To this end, a control circuit capable of turning on/off the relay K1 according to the PWM duty ratio of the dimming signal may be added.
  • the predetermined percentage may be determined based on a minimum operating current required according to one or more lighting characteristics. For example, in the case of an LED, when a current less than a predetermined current is supplied, the LED cannot operate normally. For example, when the PWM duty ratio of the dimming signal is 10% or less, the LED may be turned off due to insufficient current.
  • the dimming control device includes a power supply for supplying an alternating current; a lighting unit including one or more lights; a bridge circuit unit receiving current from the power supply unit and supplying current to the control voltage adjusting unit and the current control unit through a bridge circuit including one or more diodes; a current controller for controlling the current received from the bridge circuit unit and supplying it to the lighting unit using one or more transistors; a control voltage adjusting unit receiving a current from the bridge circuit unit and supplying a control signal of a constant voltage to the current control unit; a dimming signal receiver configured to receive a pulse-width modulated (PWM) dimming signal and control the current of the control signal supplied to the current controller; and a relay circuit unit including a relay connected to the control voltage adjusting unit.
  • PWM pulse-width modulated
  • the power supply may include two terminals for supplying single-phase power, a first terminal may be connected to the bridge circuit unit, and a second terminal may be connected to the lighting unit.
  • the transistor may be a Metal-Oxide Semiconductor Field-Effect Transistor (MOSFET), a control signal of the control voltage regulator may be supplied to a gate of the MOSFET, and an output of the bridge circuit may be supplied to a drain of the MOSFET.
  • MOSFET Metal-Oxide Semiconductor Field-Effect Transistor
  • the source of the MOSFET is connected to the bridge circuit unit, and the current supplied from the bridge circuit unit to the drain of the MOSFET may be supplied to the lighting unit through the bridge circuit unit connected to the source of the MOSFET.
  • the dimming signal receiver includes one or more photo couplers, the photo couplers receive a dimming signal, and a collector of the photo coupler may be connected to the gate of the MOSFET.
  • the emitter of the photocoupler may be connected to the bridge circuit unit, and the current of the control signal may be input to the collector of the photocoupler connected to the gate of the MOSFET, and may be output to the emitter of the photocoupler and input to the bridge circuit unit.
  • the control voltage regulator may include one or more resistors, one or more capacitors, and one or more Zener diodes, and may generate a constant voltage control signal using a breakdown voltage characteristic of the Zener diodes.
  • the relay may control the current supplied from the bridge circuit unit to the control voltage adjusting unit.
  • the relay may control the current supplied from the control voltage adjuster to the dimming signal receiver.
  • the relay connects the circuit when the power is ON, and can break the circuit when the power is OFF.
  • the dimming signal may be applied after the relay connects the circuit.
  • the relay blocks the circuit when the PWM duty ratio of the dimming signal is 0% to a predetermined %, and connects the circuit when the PWM duty ratio of the dimming signal is in the predetermined % to 100%, and the predetermined % is the minimum required according to one or more lighting characteristics It may be determined based on the operating current.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

La présente invention concerne un dispositif de commande de gradation et un procédé qui permet de bloquer un courant de fuite par l'ajout d'un relais à un dispositif de commande de gradation à l'aide d'une commande de largeur d'impulsion. Un dispositif de commande de gradation selon un mode de réalisation peut comprendre : une unité d'alimentation électrique destinée à fournir un courant alternatif ; une unité d'éclairage comprenant une ou plusieurs lumières ; une unité de circuit en pont destinée à recevoir un courant provenant de l'unité d'alimentation électrique de façon à fournir le courant à une unité de réglage de tension de commande et à une unité de commande de courant par l'intermédiaire d'un circuit en pont comprenant une ou plusieurs diodes ; l'unité de commande de courant destinée à commander le courant reçu en provenance de l'unité de circuit en pont de façon à fournir le courant à l'unité d'éclairage à l'aide d'un ou plusieurs transistors ; l'unité de réglage de tension de commande destinée à recevoir un courant provenant de l'unité de circuit en pont et fournir un signal de commande d'une tension constante à l'unité de commande de courant ; une unité de réception de signal de gradation destinée à recevoir un signal de gradation modulé en largeur d'impulsion (PWM) pour commander le courant d'un signal de commande fourni à l'unité de commande de courant ; et une unité de circuit de relais comprenant un relais connecté à l'unité de réglage de tension de commande.
PCT/KR2021/006935 2020-06-08 2021-06-03 Dispositif de commande de gradation et procédé Ceased WO2021251684A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200068944A KR102160993B1 (ko) 2020-06-08 2020-06-08 디밍 제어 장치 및 방법
KR10-2020-0068944 2020-06-08

Publications (1)

Publication Number Publication Date
WO2021251684A1 true WO2021251684A1 (fr) 2021-12-16

Family

ID=72661186

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/006935 Ceased WO2021251684A1 (fr) 2020-06-08 2021-06-03 Dispositif de commande de gradation et procédé

Country Status (2)

Country Link
KR (3) KR102160993B1 (fr)
WO (1) WO2021251684A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102160993B1 (ko) * 2020-06-08 2020-09-29 주식회사 서진아이앤씨 디밍 제어 장치 및 방법

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090048100A (ko) * 2007-11-09 2009-05-13 박항석 엘이디의 디밍제어 전원장치
KR20120006426A (ko) * 2010-07-12 2012-01-18 오투 마이크로, 인코포레이티드 광원의 디밍 제어용 회로 및 방법
KR101422338B1 (ko) * 2012-06-15 2014-07-22 루멘전광 주식회사 Ｌｅｄ 조명장치용 디밍회로
US20150257230A1 (en) * 2014-03-06 2015-09-10 Samsung Electronics Co., Ltd. Light-emitting diode (led) driver, led lighting apparatus, and method of operating led lighting apparatus
KR20180051308A (ko) * 2016-11-08 2018-05-16 이대상 디밍 제어 기능을 구비한 led 전구용 전자식 안정기의 조광 회로 장치 및 이를 이용한 pwm 제어용 led 컨버터
KR102160993B1 (ko) * 2020-06-08 2020-09-29 주식회사 서진아이앤씨 디밍 제어 장치 및 방법

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090048100A (ko) * 2007-11-09 2009-05-13 박항석 엘이디의 디밍제어 전원장치
KR20120006426A (ko) * 2010-07-12 2012-01-18 오투 마이크로, 인코포레이티드 광원의 디밍 제어용 회로 및 방법
KR101422338B1 (ko) * 2012-06-15 2014-07-22 루멘전광 주식회사 Ｌｅｄ 조명장치용 디밍회로
US20150257230A1 (en) * 2014-03-06 2015-09-10 Samsung Electronics Co., Ltd. Light-emitting diode (led) driver, led lighting apparatus, and method of operating led lighting apparatus
KR20180051308A (ko) * 2016-11-08 2018-05-16 이대상 디밍 제어 기능을 구비한 led 전구용 전자식 안정기의 조광 회로 장치 및 이를 이용한 pwm 제어용 led 컨버터
KR102160993B1 (ko) * 2020-06-08 2020-09-29 주식회사 서진아이앤씨 디밍 제어 장치 및 방법

Also Published As

Publication number Publication date
KR102352516B1 (ko) 2022-01-20
KR102332282B1 (ko) 2021-12-02
KR102160993B1 (ko) 2020-09-29
KR20210152915A (ko) 2021-12-16

Similar Documents

Publication Publication Date Title
WO2011108792A1 (fr) Commande d'affichage à diodes
WO2016108552A1 (fr) Appareil de commande d'alimentation pour sous-module de convertisseur mmc
WO2014209008A1 (fr) Dispositif d'éclairage à diodes électroluminescentes et circuit de commande pour ce dernier
WO2014133335A1 (fr) Circuit de commande pour dispositif d'éclairage à diodes électroluminescentes
WO2015152548A1 (fr) Module électroluminescent
WO2021251684A1 (fr) Dispositif de commande de gradation et procédé
WO2014189284A1 (fr) Circuit de commande et procede pour generer une tension pour un dispositif d'eclairage a diode electroluminescente
WO2022108339A1 (fr) Convertisseur intelligent pour dispositif de commande d'éclairage, convertisseur intelligent à thd et emi améliorés, et dispositif de commande d'éclairage le comprenant
WO2017204481A1 (fr) Interface d'éclairage adressable numérique (dali) et dispositif d'alimentation comprenant celle-ci
WO2019017649A1 (fr) Dispositif d'éclairage à del et procédé de commande d'intensité lumineuse associé
WO2015122753A1 (fr) Dispositif de communication utilisant une ligne électrique et système d'éclairage à del utilisant celui-ci
WO2014069939A1 (fr) Circuit d'attaque d'éclairage à del doté d'une fonction de compensation en cas de modification de la tension d'alimentation
WO2013183893A1 (fr) Dispositif d'éclairage à del
WO2017138675A1 (fr) Appareil d'alimentation en courant continu
WO2016122182A1 (fr) Circuit de commande pour appareil d'éclairage à diodes électroluminescentes et son procédé de commande
WO2019225917A1 (fr) Stabilisateur de lampe à del compatible avec un ballast de lampe fluorescente et son procédé de fonctionnement
US10506683B2 (en) Active power distribution system for low-voltage lighting and other applications
WO2015008878A1 (fr) Circuit intégré pour un éclairage et procédé permettant de commander un éclairage
WO2021150005A1 (fr) Appareil pour commander un éclairage et dispositif d'éclairage le comprenant
WO2021015388A1 (fr) Dispositif de protection contre les surintensités et dispositif de conversion de puissance l'utilisant
US11737188B2 (en) LED-driver with PFC and wired bus interface
WO2015083885A1 (fr) Alimentation électrique de del de type à pilotage direct de courant alternatif apte à surmonter une surtension
WO2014157997A1 (fr) Module d'éclairage
WO2022080625A1 (fr) Alimentation électrique multiple apte à une commande de séquences
WO2020166928A1 (fr) Module triac

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: 21822003

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: 21822003

Country of ref document: EP

Kind code of ref document: A1