EP3790360A4 - Led dimming circuit, dimming apparatus and dimming method for reducing harmonic distortion - Google Patents

Led dimming circuit, dimming apparatus and dimming method for reducing harmonic distortion Download PDF

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Publication number
EP3790360A4
EP3790360A4 EP19793821.0A EP19793821A EP3790360A4 EP 3790360 A4 EP3790360 A4 EP 3790360A4 EP 19793821 A EP19793821 A EP 19793821A EP 3790360 A4 EP3790360 A4 EP 3790360A4
Authority
EP
European Patent Office
Prior art keywords
dimming
harmonic distortion
led
circuit
reducing harmonic
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.)
Withdrawn
Application number
EP19793821.0A
Other languages
German (de)
French (fr)
Other versions
EP3790360A1 (en
Inventor
Yanquan MAI
You GUO
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.)
Shenzhen Sendis Semiconductor Co Ltd
Original Assignee
Shenzhen Sendis Semiconductor 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 Shenzhen Sendis Semiconductor Co Ltd filed Critical Shenzhen Sendis Semiconductor Co Ltd
Publication of EP3790360A1 publication Critical patent/EP3790360A1/en
Publication of EP3790360A4 publication Critical patent/EP3790360A4/en
Withdrawn legal-status Critical Current

Links

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]
    • H05B45/30—Driver circuits
    • H05B45/36—Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [EMI]
    • 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]
    • 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
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/19—Controlling the light source by remote control via wireless transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Led Devices (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP19793821.0A 2018-04-28 2019-03-06 Led dimming circuit, dimming apparatus and dimming method for reducing harmonic distortion Withdrawn EP3790360A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810401233.0A CN108495419B (en) 2018-04-28 2018-04-28 LED dimming circuit, dimming device and dimming method for reducing harmonic distortion
PCT/CN2019/077115 WO2019205818A1 (en) 2018-04-28 2019-03-06 Led dimming circuit, dimming apparatus and dimming method for reducing harmonic distortion

Publications (2)

Publication Number Publication Date
EP3790360A1 EP3790360A1 (en) 2021-03-10
EP3790360A4 true EP3790360A4 (en) 2021-06-02

Family

ID=63313404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19793821.0A Withdrawn EP3790360A4 (en) 2018-04-28 2019-03-06 Led dimming circuit, dimming apparatus and dimming method for reducing harmonic distortion

Country Status (3)

Country Link
EP (1) EP3790360A4 (en)
CN (1) CN108495419B (en)
WO (1) WO2019205818A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108495419B (en) * 2018-04-28 2024-05-14 深圳市晟碟半导体有限公司 LED dimming circuit, dimming device and dimming method for reducing harmonic distortion
CN110035584B (en) * 2019-04-28 2024-03-19 深圳市晟碟半导体有限公司 LED dimming circuit, dimming device and dimming method for improving dimming precision
CN110177410A (en) * 2019-05-24 2019-08-27 深圳市晟碟半导体有限公司 A kind of LED light adjusting circuit, dimming device and light-dimming method
CN110572897B (en) * 2019-08-20 2024-03-19 深圳市晟碟半导体有限公司 High-power-factor stroboflash-free LED dimming circuit, device and dimming method
CN111163565A (en) * 2020-02-25 2020-05-15 深圳市晟碟半导体有限公司 LED drive circuit capable of reducing harmonic distortion and drive method thereof
CN111200892B (en) * 2020-02-28 2023-08-29 深圳市晟碟半导体有限公司 LED control device, circuit and control method thereof
CN111163549B (en) * 2020-02-28 2023-09-22 深圳市晟碟半导体有限公司 Time-division multiplexing LED dimming device, circuit and dimming method thereof
CN111372345B (en) * 2020-03-18 2022-04-15 深圳市晟碟半导体有限公司 LED dimming circuit and dimming method thereof
CN111722069B (en) * 2020-06-30 2023-09-22 蜂巢能源科技股份有限公司 Insulation detection circuit sampling resistor selection method, device, medium and equipment
CN112996182B (en) * 2021-03-11 2023-03-10 广州彩熠灯光股份有限公司 Light source driving circuit
CN114007305A (en) * 2021-10-09 2022-02-01 深圳南云微电子有限公司 Control method and controller
CN113993244A (en) * 2021-11-25 2022-01-28 深圳市火乐科技发展有限公司 Dimming circuit and light emitting device

Citations (8)

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Publication number Priority date Publication date Assignee Title
US5831566A (en) * 1996-05-07 1998-11-03 Vlsi Technology, Inc. Low voltage digital-to-analog converter
US20050052305A1 (en) * 2003-09-10 2005-03-10 Catalyst Semiconductor, Inc. Digital potentiometer including plural bulk impedance devices
CN101730335A (en) * 2008-10-30 2010-06-09 登丰微电子股份有限公司 Light-emitting diode drive circuit and transistor switching module thereof
US20110187283A1 (en) * 2010-01-31 2011-08-04 Microsemi Corporation Dimming input suitable for multiple dimming signal types
CN103025031A (en) * 2012-12-28 2013-04-03 上海澳星照明电器制造有限公司 Dimming circuit and dimming method for LED light supplementing lamp
CN103124459A (en) * 2013-01-04 2013-05-29 安提亚科技股份有限公司 Color and brightness adjustable light-adjusting method and device and illuminating system
WO2016138204A1 (en) * 2015-02-27 2016-09-01 Diodes Incorporated Analog and digital dimming control for led driver
CN107222953A (en) * 2017-07-25 2017-09-29 许瑞清 Numerical model analysis dims constant-current controller integrated circuit

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
JP4219669B2 (en) * 2002-12-12 2009-02-04 旭化成エレクトロニクス株式会社 Constant voltage generation circuit and PLL circuit
CN101034535A (en) * 2006-03-08 2007-09-12 天利半导体（深圳）有限公司 Temperature coefficient adjustable reference circuit
JP5482221B2 (en) * 2010-01-22 2014-05-07 株式会社リコー Analog circuit
JP2011233450A (en) * 2010-04-30 2011-11-17 On Semiconductor Trading Ltd Control circuit of light-emitting element
CN102802317B (en) * 2012-08-28 2014-09-24 成都启臣微电子有限公司 Adjusting device of LED (Light-Emitting Diode) light source
CN103491682B (en) * 2013-09-22 2015-06-03 辉芒微电子（深圳）有限公司 Linear switching constant-current LED drive circuit for control over peak current
CN104023456B (en) * 2014-07-01 2016-01-20 无锡硅动力微电子股份有限公司 LED sectional dimming circuit
CN104780688B (en) * 2015-04-20 2017-11-17 无锡硅动力微电子股份有限公司 The LED light adjusting circuits and LED light adjusting circuit chips of switch dimming
CN105007657B (en) * 2015-07-22 2017-07-04 深圳市富满电子集团股份有限公司 The driving chip and drive circuit of color-temperature regulating are dimmed based on switch control LED
CN106304509B (en) * 2016-10-14 2018-05-22 上海晶丰明源半导体股份有限公司 Illuminating circuit and its controller and control method of application
CN106455227B (en) * 2016-11-11 2019-02-01 深圳市明微电子股份有限公司 A kind of LED linear constant-current control circuit and LED light emission device
CN108495419B (en) * 2018-04-28 2024-05-14 深圳市晟碟半导体有限公司 LED dimming circuit, dimming device and dimming method for reducing harmonic distortion
CN208094850U (en) * 2018-04-28 2018-11-13 深圳市晟碟半导体有限公司 A kind of LED light adjusting circuits, light modulating device reducing harmonic distortion

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5831566A (en) * 1996-05-07 1998-11-03 Vlsi Technology, Inc. Low voltage digital-to-analog converter
US20050052305A1 (en) * 2003-09-10 2005-03-10 Catalyst Semiconductor, Inc. Digital potentiometer including plural bulk impedance devices
CN101730335A (en) * 2008-10-30 2010-06-09 登丰微电子股份有限公司 Light-emitting diode drive circuit and transistor switching module thereof
US20110187283A1 (en) * 2010-01-31 2011-08-04 Microsemi Corporation Dimming input suitable for multiple dimming signal types
CN103025031A (en) * 2012-12-28 2013-04-03 上海澳星照明电器制造有限公司 Dimming circuit and dimming method for LED light supplementing lamp
CN103124459A (en) * 2013-01-04 2013-05-29 安提亚科技股份有限公司 Color and brightness adjustable light-adjusting method and device and illuminating system
WO2016138204A1 (en) * 2015-02-27 2016-09-01 Diodes Incorporated Analog and digital dimming control for led driver
CN107222953A (en) * 2017-07-25 2017-09-29 许瑞清 Numerical model analysis dims constant-current controller integrated circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2019205818A1 *

Also Published As

Publication number Publication date
WO2019205818A1 (en) 2019-10-31
CN108495419A (en) 2018-09-04
EP3790360A1 (en) 2021-03-10
CN108495419B (en) 2024-05-14

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