GB2488208B - Circuits and methods for driving light sources - Google Patents

Circuits and methods for driving light sources

Info

Publication number
GB2488208B
GB2488208B GB1201989.9A GB201201989A GB2488208B GB 2488208 B GB2488208 B GB 2488208B GB 201201989 A GB201201989 A GB 201201989A GB 2488208 B GB2488208 B GB 2488208B
Authority
GB
United Kingdom
Prior art keywords
circuits
methods
light sources
driving light
driving
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.)
Active
Application number
GB1201989.9A
Other languages
English (en)
Other versions
GB201201989D0 (en
GB2488208A (en
Inventor
Yung Lin Lin
Ching-Chuan Kuo
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.)
O2Micro Inc
Original Assignee
O2Micro 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
Priority claimed from US13/028,626 external-priority patent/US8378588B2/en
Application filed by O2Micro Inc filed Critical O2Micro Inc
Publication of GB201201989D0 publication Critical patent/GB201201989D0/en
Publication of GB2488208A publication Critical patent/GB2488208A/en
Application granted granted Critical
Publication of GB2488208B publication Critical patent/GB2488208B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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]
    • H05B45/10—Controlling the intensity 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]
    • H05B45/20—Controlling the colour of the light
    • H05B45/24—Controlling the colour of the light using electrical feedback from LEDs or from LED modules
    • 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
GB1201989.9A 2011-02-16 2012-02-06 Circuits and methods for driving light sources Active GB2488208B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/028,626 US8378588B2 (en) 2008-12-12 2011-02-16 Circuits and methods for driving light sources

Publications (3)

Publication Number Publication Date
GB201201989D0 GB201201989D0 (en) 2012-03-21
GB2488208A GB2488208A (en) 2012-08-22
GB2488208B true GB2488208B (en) 2013-08-14

Family

ID=45826441

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1201989.9A Active GB2488208B (en) 2011-02-16 2012-02-06 Circuits and methods for driving light sources

Country Status (7)

Country Link
JP (1) JP5492921B2 (pm)
CN (1) CN102387639B (pm)
BR (1) BR102012003599A2 (pm)
DE (1) DE102012200692B4 (pm)
GB (1) GB2488208B (pm)
IN (1) IN2012DE00317A (pm)
TW (1) TWI478625B (pm)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9030122B2 (en) 2008-12-12 2015-05-12 O2Micro, Inc. Circuits and methods for driving LED light sources
US9253843B2 (en) 2008-12-12 2016-02-02 02Micro Inc Driving circuit with dimming controller for driving light sources
US9232591B2 (en) 2008-12-12 2016-01-05 O2Micro Inc. Circuits and methods for driving light sources
US9386653B2 (en) 2008-12-12 2016-07-05 O2Micro Inc Circuits and methods for driving light sources
GB2498371B (en) * 2012-01-12 2016-09-14 Tridonic Gmbh & Co Kg Lamp controller
JP2014026954A (ja) * 2012-07-26 2014-02-06 O2 Micro Inc 光源を駆動する回路および方法
JP5988207B2 (ja) * 2012-09-07 2016-09-07 パナソニックＩｐマネジメント株式会社 固体発光素子駆動装置及び照明装置、照明器具
WO2014065389A1 (en) 2012-10-25 2014-05-01 Semiconductor Energy Laboratory Co., Ltd. Central control system
TW201419934A (zh) * 2012-11-02 2014-05-16 Unity Opto Technology Co Ltd Ｌｅｄ驅動電路
CN103841716B (zh) * 2012-11-27 2016-04-27 东贝光电科技股份有限公司 Led驱动电路
TWI497010B (zh) * 2013-02-19 2015-08-21 LED lamps THD improvement circuit
TWM461737U (zh) * 2013-05-24 2013-09-11 Hark Group Holding Corp 照明裝置
GB2519794A (en) * 2013-10-30 2015-05-06 Kosnic Uk Ltd Dimming lighting apparatus
CN103906314B (zh) * 2014-03-04 2016-05-04 华南理工大学 基于电压记忆与分段限流的led驱动电路及方法
CN104023435B (zh) * 2014-05-14 2017-01-04 华南理工大学 一种新型led电路
US20170257916A1 (en) * 2014-08-27 2017-09-07 Sharp Kabushiki Kaisha Lighting device
US9686834B2 (en) * 2014-09-15 2017-06-20 Dialog Semiconductor Inc. Powering internal components of LED lamps using dissipative sources
CN104812118B (zh) * 2015-04-17 2017-03-01 华南理工大学 一种采用交流市电的led照明驱动电路及方法
US10492257B2 (en) * 2016-05-20 2019-11-26 Panasonic Intellectual Property Management Co., Ltd. Lighting device and lighting fixture
CN109729614A (zh) * 2017-10-27 2019-05-07 凹凸电子（武汉）有限公司 控制器、光源驱动电路及控制光源模块的方法
CN110392461A (zh) * 2018-04-18 2019-10-29 凹凸电子（武汉）有限公司 控制器、光源驱动电路及控制光源模块的方法
CN111836420A (zh) * 2019-04-17 2020-10-27 漳州立达信光电子科技有限公司 Led驱动方法、电路、led装置及驱动电源模块
US10602578B1 (en) * 2019-06-03 2020-03-24 Astec International Limited Horticulture facilities with centralized power supplies for powering LED luminaires via power transfer switches
CN112068461B (zh) * 2019-06-11 2022-01-04 北京大瞬科技有限公司 控制器、控制电路及利用控制电路控制智能设备的方法
CN112233627B (zh) * 2020-12-14 2021-04-20 北京显芯科技有限公司 背光电路的控制方法、背光电路以及lcd显示屏

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060139907A1 (en) * 2004-12-29 2006-06-29 George Yen All-color light control switch
US20090189548A1 (en) * 2008-01-25 2009-07-30 Eveready Battery Company, Inc. Lighting Device Having Boost Circuitry
US20090309501A1 (en) * 2003-11-04 2009-12-17 Anthony Catalano Light Emitting Diode Replacement Lamp
EP2273851A2 (en) * 2009-06-24 2011-01-12 Nxp B.V. System and method for controlling LED cluster

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4495814B2 (ja) * 1999-12-28 2010-07-07 アビックス株式会社 調光式ｌｅｄ照明器具
US7204602B2 (en) * 2001-09-07 2007-04-17 Super Vision International, Inc. Light emitting diode pool assembly
CN2640198Y (zh) * 2003-07-21 2004-09-08 长春工业大学 大型荧光灯调光控制器
US7126289B2 (en) * 2004-08-20 2006-10-24 O2 Micro Inc Protection for external electrode fluorescent lamp system
CN1925714B (zh) * 2005-09-02 2010-05-05 索玉昇 气体放电灯的多段调光控制装置及其调光控制方法
JP5089193B2 (ja) * 2007-02-22 2012-12-05 株式会社小糸製作所 発光装置
CN101358719B (zh) * 2007-07-30 2012-01-04 太一节能系统股份有限公司 发光二极管灯源及照明系统
US7759881B1 (en) * 2008-03-31 2010-07-20 Cirrus Logic, Inc. LED lighting system with a multiple mode current control dimming strategy
US7843148B2 (en) * 2008-04-08 2010-11-30 Micrel, Inc. Driving multiple parallel LEDs with reduced power supply ripple
US7919934B2 (en) * 2008-06-28 2011-04-05 Huan-Po Lin Apparatus and method for driving and adjusting light
CN101854759B (zh) * 2009-03-31 2011-07-06 凹凸电子（武汉）有限公司 对光源进行电能控制的驱动电路和方法及系统
JP5600456B2 (ja) * 2009-05-19 2014-10-01 ローム株式会社 発光ダイオードの駆動回路およびそれを用いた発光装置およびディスプレイ装置、駆動回路の保護方法
JP5404190B2 (ja) * 2009-06-02 2014-01-29 三菱電機株式会社 点灯装置および照明器具
TWI401995B (zh) * 2009-06-06 2013-07-11 Anteya Technology Corp Power switch switching dimmer and its LED device
CN101815383B (zh) * 2010-03-31 2013-11-06 许波 一种led调光驱动装置及调光led灯

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090309501A1 (en) * 2003-11-04 2009-12-17 Anthony Catalano Light Emitting Diode Replacement Lamp
US20060139907A1 (en) * 2004-12-29 2006-06-29 George Yen All-color light control switch
US20090189548A1 (en) * 2008-01-25 2009-07-30 Eveready Battery Company, Inc. Lighting Device Having Boost Circuitry
EP2273851A2 (en) * 2009-06-24 2011-01-12 Nxp B.V. System and method for controlling LED cluster

Also Published As

Publication number Publication date
CN102387639B (zh) 2013-08-21
JP5492921B2 (ja) 2014-05-14
IN2012DE00317A (pm) 2015-04-10
JP2012169277A (ja) 2012-09-06
GB201201989D0 (en) 2012-03-21
TW201236512A (en) 2012-09-01
DE102012200692A1 (de) 2012-08-16
GB2488208A (en) 2012-08-22
TWI478625B (zh) 2015-03-21
BR102012003599A2 (pt) 2014-07-08
CN102387639A (zh) 2012-03-21
DE102012200692B4 (de) 2016-02-04

Similar Documents

Publication Publication Date Title
GB2488208B (en) Circuits and methods for driving light sources
EP2792937A4 (en) VEHICLE LIGHT
GB201119111D0 (en) Illumination apparatus
EP2801746A4 (en) OPTICAL SEMICONDUCTOR LIGHTING APPARATUS
EP2716967A4 (en) LIGHT SOURCE DEVICE
PL2732319T3 (pl) Lampa do pojazdu
EP2604178B8 (en) Light source apparatus
EP2811225A4 (en) OPTICAL SEMICONDUCTOR LIGHTING APPARATUS
SG11201401092QA (en) An illumination system
PL2692209T3 (pl) Źródło światła led
AU339253S (en) Light
EP2741119A4 (en) LIGHT SOURCE DEVICE
EP2664845A4 (de) Beleuchtungsvorrichtung
EP2799759A4 (en) LIGHTING APPARATUS
PL2607777T3 (pl) Światło pojazdu
PL2731824T3 (pl) Światło samochodowe
GB2503316B (en) Circuits and methods for driving light sources
SI2482621T1 (sl) Svetilka in postopek za krmiljenje le-te
EP2631931A4 (en) LIGHT SOURCE DEVICE
EP2715228A4 (en) ILLUMINATION DEVICE
EP2733515A4 (en) LIGHT SOURCE DEVICE
EP2743566A4 (en) LED LIGHT SOURCE
GB201419181D0 (en) Circuits and methods for driving light sources
GB2513478B8 (en) Circuits and methods for driving light sources
GB2490887B (en) Decorative light apparatus

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20220908 AND 20220914