TWI756721B - 調光調色之發光二極體電路 - Google Patents
調光調色之發光二極體電路 Download PDFInfo
- Publication number
- TWI756721B TWI756721B TW109121726A TW109121726A TWI756721B TW I756721 B TWI756721 B TW I756721B TW 109121726 A TW109121726 A TW 109121726A TW 109121726 A TW109121726 A TW 109121726A TW I756721 B TWI756721 B TW I756721B
- Authority
- TW
- Taiwan
- Prior art keywords
- led
- current
- array
- circuit
- color
- Prior art date
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Classifications
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- 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]
- H05B45/20—Controlling the colour of the light
-
- 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]
- H05B45/30—Driver circuits
- H05B45/357—Driver circuits specially adapted for retrofit LED light sources
- H05B45/3574—Emulating the electrical or functional characteristics of incandescent lamps
- H05B45/3577—Emulating the dimming characteristics, brightness or colour temperature of incandescent lamps
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/454,730 US10652962B1 (en) | 2019-06-27 | 2019-06-27 | Dim-to-warm LED circuit |
US16/454,730 | 2019-06-27 | ||
EP19204908 | 2019-10-23 | ||
EP19204908.8 | 2019-10-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW202107941A TW202107941A (zh) | 2021-02-16 |
TWI756721B true TWI756721B (zh) | 2022-03-01 |
Family
ID=71579673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW109121726A TWI756721B (zh) | 2019-06-27 | 2020-06-24 | 調光調色之發光二極體電路 |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3991521A1 (ko) |
JP (1) | JP7106023B2 (ko) |
KR (1) | KR102488473B1 (ko) |
CN (1) | CN114271028B (ko) |
TW (1) | TWI756721B (ko) |
WO (1) | WO2020263826A1 (ko) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070279440A1 (en) * | 2006-05-31 | 2007-12-06 | Led Lighting Fixtures, Inc. | Lighting device and method of lighting |
TW201436634A (zh) * | 2013-03-15 | 2014-09-16 | Vastview Tech Inc | 驅動數種顏色的發光二極體串之裝置 |
US20140333216A1 (en) * | 2013-05-10 | 2014-11-13 | Marvell World Trade Ltd. | Multi-string dimmable led driver |
TWI568311B (zh) * | 2013-11-15 | 2017-01-21 | 凹凸科技國際股份有限公司 | 光源驅動電路、色溫控制器及控制光源色溫的方法 |
US9730291B1 (en) * | 2016-10-07 | 2017-08-08 | Cooper Technologies Company | Color temperature adjustment based on dim level |
US20170245338A1 (en) * | 2016-02-24 | 2017-08-24 | Teknoware Oy | Led light source and method for adjusting colour tone or colour temperature of led light source |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8058817B2 (en) * | 2008-09-30 | 2011-11-15 | O2Micro, Inc. | Power systems with current regulation |
CN101697654B (zh) * | 2009-10-30 | 2013-02-27 | 中山大学 | 多光色组成led光源的相关色温及显色指数自校准电路 |
JP6234038B2 (ja) | 2013-03-01 | 2017-11-22 | ローム株式会社 | 差動増幅器、それを用いたδσa/dコンバータ、オーディオ信号処理回路、電子機器 |
DE112013006888T5 (de) * | 2013-03-26 | 2015-12-03 | Vastview Technology Inc. | Vorrichtung zum Betreiben vielfarbiger LED-Bänder |
KR102286767B1 (ko) * | 2015-02-03 | 2021-08-10 | 주식회사 실리콘웍스 | 발광 다이오드 조명 장치의 제어 회로 |
WO2017139589A2 (en) * | 2016-02-10 | 2017-08-17 | Hubbell Incorporated | Toggle control for lighting system |
US10034346B2 (en) | 2016-04-27 | 2018-07-24 | Lumileds Llc | Dim to warm controller for LEDs |
EP3649833B1 (en) | 2017-07-02 | 2021-08-11 | Lumileds LLC | Method for wide-range cct tuning that follows the black body line using two independently controlled current channels and three ccts |
-
2020
- 2020-06-23 JP JP2021576925A patent/JP7106023B2/ja active Active
- 2020-06-23 KR KR1020227002983A patent/KR102488473B1/ko active IP Right Grant
- 2020-06-23 CN CN202080060942.2A patent/CN114271028B/zh active Active
- 2020-06-23 WO PCT/US2020/039137 patent/WO2020263826A1/en active Application Filing
- 2020-06-23 EP EP20739814.0A patent/EP3991521A1/en active Pending
- 2020-06-24 TW TW109121726A patent/TWI756721B/zh active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070279440A1 (en) * | 2006-05-31 | 2007-12-06 | Led Lighting Fixtures, Inc. | Lighting device and method of lighting |
TW201436634A (zh) * | 2013-03-15 | 2014-09-16 | Vastview Tech Inc | 驅動數種顏色的發光二極體串之裝置 |
US20140333216A1 (en) * | 2013-05-10 | 2014-11-13 | Marvell World Trade Ltd. | Multi-string dimmable led driver |
TWI568311B (zh) * | 2013-11-15 | 2017-01-21 | 凹凸科技國際股份有限公司 | 光源驅動電路、色溫控制器及控制光源色溫的方法 |
US20170245338A1 (en) * | 2016-02-24 | 2017-08-24 | Teknoware Oy | Led light source and method for adjusting colour tone or colour temperature of led light source |
US9730291B1 (en) * | 2016-10-07 | 2017-08-08 | Cooper Technologies Company | Color temperature adjustment based on dim level |
Also Published As
Publication number | Publication date |
---|---|
EP3991521A1 (en) | 2022-05-04 |
JP7106023B2 (ja) | 2022-07-25 |
TW202107941A (zh) | 2021-02-16 |
CN114271028A (zh) | 2022-04-01 |
KR20220019836A (ko) | 2022-02-17 |
KR102488473B1 (ko) | 2023-01-13 |
JP2022530708A (ja) | 2022-06-30 |
CN114271028B (zh) | 2023-04-11 |
WO2020263826A1 (en) | 2020-12-30 |
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