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 PDF

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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
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TW
Taiwan
Prior art keywords
led
current
array
circuit
color
Prior art date
Application number
TW109121726A
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English (en)
Chinese (zh)
Other versions
TW202107941A (zh
Inventor
怡峰 邱
Original Assignee
美商亮銳公司
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
Priority claimed from US16/454,730 external-priority patent/US10652962B1/en
Application filed by 美商亮銳公司 filed Critical 美商亮銳公司
Publication of TW202107941A publication Critical patent/TW202107941A/zh
Application granted granted Critical
Publication of TWI756721B publication Critical patent/TWI756721B/zh

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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

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  • Circuit Arrangement For Electric Light Sources In General (AREA)
TW109121726A 2019-06-27 2020-06-24 調光調色之發光二極體電路 TWI756721B (zh)

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
EP19204908.8 2019-10-23
EP19204908 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 (ja)
JP (1) JP7106023B2 (ja)
KR (1) KR102488473B1 (ja)
CN (1) CN114271028B (ja)
TW (1) TWI756721B (ja)
WO (1) WO2020263826A1 (ja)

Citations (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
WO2014153678A1 (zh) * 2013-03-26 2014-10-02 钰瀚科技股份有限公司 驱动数种颜色的发光二极管串的装置
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
JP6903174B2 (ja) * 2017-07-02 2021-07-14 ルミレッズ リミテッド ライアビリティ カンパニー ２つの独立に制御される電流チャネルおよび３つのｃｃｔを用いる黒体線に沿った広範囲のｃｃｔ調整のための方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
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
CN114271028B (zh) 2023-04-11
KR20220019836A (ko) 2022-02-17
EP3991521A1 (en) 2022-05-04
KR102488473B1 (ko) 2023-01-13
JP7106023B2 (ja) 2022-07-25
JP2022530708A (ja) 2022-06-30
WO2020263826A1 (en) 2020-12-30
TW202107941A (zh) 2021-02-16
CN114271028A (zh) 2022-04-01

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