EP4033863A4 - Drive circuit, and related circuit and device - Google Patents

Drive circuit, and related circuit and device Download PDF

Info

Publication number
EP4033863A4
EP4033863A4 EP20901972.8A EP20901972A EP4033863A4 EP 4033863 A4 EP4033863 A4 EP 4033863A4 EP 20901972 A EP20901972 A EP 20901972A EP 4033863 A4 EP4033863 A4 EP 4033863A4
Authority
EP
European Patent Office
Prior art keywords
circuit
drive circuit
drive
related circuit
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.)
Pending
Application number
EP20901972.8A
Other languages
German (de)
French (fr)
Other versions
EP4033863A1 (en
Inventor
Zaixin MU
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.)
Maxic Technology Inc
Original Assignee
Maxic Technology Inc
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 Maxic Technology Inc filed Critical Maxic Technology Inc
Publication of EP4033863A1 publication Critical patent/EP4033863A1/en
Publication of EP4033863A4 publication Critical patent/EP4033863A4/en
Pending 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
    • H05B45/355—Power factor correction [PFC]; Reactive power compensation
    • 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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/38—Switched mode power supply [SMPS] using boost topology
    • 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
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology
    • 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
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/392—Switched mode power supply [SMPS] wherein the LEDs are placed as freewheeling diodes at the secondary side of an isolation transformer
    • 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
    • H05B45/59—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits for reducing or suppressing flicker or glow effects
EP20901972.8A 2019-12-20 2020-04-02 Drive circuit, and related circuit and device Pending EP4033863A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911330642.7A CN113015287B (en) 2019-12-20 2019-12-20 Driving circuit, related circuit and device
PCT/CN2020/082968 WO2021120445A1 (en) 2019-12-20 2020-04-02 Drive circuit, and related circuit and device

Publications (2)

Publication Number Publication Date
EP4033863A1 EP4033863A1 (en) 2022-07-27
EP4033863A4 true EP4033863A4 (en) 2022-11-09

Family

ID=76382183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20901972.8A Pending EP4033863A4 (en) 2019-12-20 2020-04-02 Drive circuit, and related circuit and device

Country Status (3)

Country Link
EP (1) EP4033863A4 (en)
CN (1) CN113015287B (en)
WO (1) WO2021120445A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114205963A (en) * 2021-12-21 2022-03-18 欧普照明股份有限公司 Linear LED driving circuit and driving method
CN115021554B (en) * 2022-08-05 2022-11-08 浙江大学 Adapter circuit, filtering system, AC-DC power supply and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102263492A (en) * 2010-05-28 2011-11-30 瑞萨电子株式会社 Semiconductor device and power supply device
US9295117B2 (en) * 2011-12-16 2016-03-22 Alternative Lighting Technologies, Inc. Near unity power factor long life low cost LED lamp retrofit system and method
CN109348587A (en) * 2018-12-14 2019-02-15 上海源微电子科技有限公司 A kind of constant current driver circuit for LED with high PF without stroboscopic
US20190191506A1 (en) * 2017-12-15 2019-06-20 Silergy Semiconductor Technology (Hangzhou) Ltd Power converter, led driver and control method

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101630175A (en) * 2008-12-31 2010-01-20 曹先国 Matching current mirror
CN202652092U (en) * 2012-04-28 2013-01-02 欧司朗股份有限公司 Load driving circuit
CN102723886B (en) * 2012-06-26 2015-02-18 上海新进半导体制造有限公司 High power factor switch power supply and controller and control method thereof
CN103857138B (en) * 2012-12-07 2017-12-15 李文雄 The LED drive power and LED daylight lamp of integrated optical source
CN103945616B (en) * 2014-04-30 2016-03-30 深圳市晟碟半导体有限公司 A kind of light fixture and LED drive device thereof
CN104093252B (en) * 2014-07-16 2016-04-06 浙江大学 A kind of without stroboscopic non-isolation type constant current driver circuit for LED
CN104883780B (en) * 2015-05-19 2017-06-23 深圳创维－Rgb电子有限公司 Multichannel dual mode digital controls LED drive circuit and LED
CN106961768B (en) * 2017-04-28 2019-02-19 南京微客力科技有限公司 A kind of LED linear constant-current drive circuit of active valley-fill circuit mode
CN207505174U (en) * 2017-10-27 2018-06-15 上海晶丰明源半导体股份有限公司 Line voltage compensation circuit, driver and LED drive circuit and drive system
CN107844155A (en) * 2017-11-10 2018-03-27 深圳睿舍智能科技有限公司 One kind bypasses constant-current source circuit in parallel
CN107979899A (en) * 2017-12-27 2018-05-01 苏州菲达旭微电子有限公司 A kind of linear general pump feeds constant-current circuit and has its LED light
CN109309992A (en) * 2018-10-26 2019-02-05 苏州菲达旭微电子有限公司 A kind of ripple-free LED circuit of half pressure power supply
CN110519881B (en) * 2019-07-16 2022-05-13 深圳市稳先微电子有限公司 LED driving circuit and control method thereof
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
CN211606882U (en) * 2019-12-20 2020-09-29 美芯晟科技（北京）有限公司 Drive circuit, LED circuit and lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102263492A (en) * 2010-05-28 2011-11-30 瑞萨电子株式会社 Semiconductor device and power supply device
US9295117B2 (en) * 2011-12-16 2016-03-22 Alternative Lighting Technologies, Inc. Near unity power factor long life low cost LED lamp retrofit system and method
US20190191506A1 (en) * 2017-12-15 2019-06-20 Silergy Semiconductor Technology (Hangzhou) Ltd Power converter, led driver and control method
CN109348587A (en) * 2018-12-14 2019-02-15 上海源微电子科技有限公司 A kind of constant current driver circuit for LED with high PF without stroboscopic

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021120445A1 *

Also Published As

Publication number Publication date
CN113015287B (en) 2024-02-06
EP4033863A1 (en) 2022-07-27
WO2021120445A1 (en) 2021-06-24
CN113015287A (en) 2021-06-22

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