EP4033863A4 - Drive circuit, and related circuit and device - Google Patents
Drive circuit, and related circuit and device Download PDFInfo
- 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
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
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)
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)
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)
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 |
-
2019
- 2019-12-20 CN CN201911330642.7A patent/CN113015287B/en active Active
-
2020
- 2020-04-02 EP EP20901972.8A patent/EP4033863A4/en active Pending
- 2020-04-02 WO PCT/CN2020/082968 patent/WO2021120445A1/en unknown
Patent Citations (4)
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)
Title |
---|
See also references of WO2021120445A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN113015287A (en) | 2021-06-22 |
WO2021120445A1 (en) | 2021-06-24 |
EP4033863A1 (en) | 2022-07-27 |
CN113015287B (en) | 2024-02-06 |
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Legal Events
Date | Code | Title | Description |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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17P | Request for examination filed |
Effective date: 20220419 |
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AK | Designated contracting states |
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REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Free format text: PREVIOUS MAIN CLASS: H05B0033080000 Ipc: H05B0045355000 |
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A4 | Supplementary search report drawn up and despatched |
Effective date: 20221010 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: H05B 45/355 20200101AFI20221004BHEP |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) |