GB201201989D0 - Circuits and methods for driving light sources - Google Patents

Circuits and methods for driving light sources

Info

Publication number
GB201201989D0
GB201201989D0 GBGB1201989.9A GB201201989A GB201201989D0 GB 201201989 D0 GB201201989 D0 GB 201201989D0 GB 201201989 A GB201201989 A GB 201201989A GB 201201989 D0 GB201201989 D0 GB 201201989D0
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.)
Granted
Application number
GBGB1201989.9A
Other versions
GB2488208A (en
GB2488208B (en
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]
    • H05B45/20—Controlling the colour of the light
    • H05B45/24—Controlling the colour of the light using electrical feedback from LEDs or from LED modules
    • H05B33/0845—
    • H05B33/0857—
    • 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
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 true GB201201989D0 (en) 2012-03-21
GB2488208A GB2488208A (en) 2012-08-22
GB2488208B 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 (en)
CN (1) CN102387639B (en)
BR (1) BR102012003599A2 (en)
DE (1) DE102012200692B4 (en)
GB (1) GB2488208B (en)
IN (1) IN2012DE00317A (en)
TW (1) TWI478625B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9386653B2 (en) 2008-12-12 2016-07-05 O2Micro Inc Circuits and methods for driving 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
US9030122B2 (en) 2008-12-12 2015-05-12 O2Micro, Inc. Circuits and methods for driving LED light sources
GB2498371B (en) * 2012-01-12 2016-09-14 Tridonic Gmbh & Co Kg Lamp controller
JP2014026954A (en) * 2012-07-26 2014-02-06 O2 Micro Inc Circuit and method for driving light source
JP5988207B2 (en) * 2012-09-07 2016-09-07 パナソニックＩｐマネジメント株式会社 Solid-state light-emitting element driving device, lighting device, and lighting fixture
WO2014065389A1 (en) 2012-10-25 2014-05-01 Semiconductor Energy Laboratory Co., Ltd. Central control system
TW201419934A (en) * 2012-11-02 2014-05-16 Unity Opto Technology Co Ltd LED driving circuit
CN103841716B (en) * 2012-11-27 2016-04-27 东贝光电科技股份有限公司 Led drive circuit
TWI497010B (en) * 2013-02-19 2015-08-21 LED lamps THD improvement circuit
TWM461737U (en) * 2013-05-24 2013-09-11 Hark Group Holding Corp Lighting device
GB2519794A (en) * 2013-10-30 2015-05-06 Kosnic Uk Ltd Dimming lighting apparatus
CN103906314B (en) * 2014-03-04 2016-05-04 华南理工大学 LED drive circuit and method based on voltage memory with segmentation current limliting
CN104023435B (en) * 2014-05-14 2017-01-04 华南理工大学 A kind of New LED circuit
EP3188574A4 (en) * 2014-08-27 2018-03-07 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 (en) * 2015-04-17 2017-03-01 华南理工大学 A kind of LED illumination drive circuit of employing electric main and method
US10492257B2 (en) * 2016-05-20 2019-11-26 Panasonic Intellectual Property Management Co., Ltd. Lighting device and lighting fixture
CN109729614A (en) * 2017-10-27 2019-05-07 凹凸电子（武汉）有限公司 Controller, light source driving circuit and the method for controlling light source module
CN110392461A (en) * 2018-04-18 2019-10-29 凹凸电子（武汉）有限公司 Controller, light source driving circuit and the method for controlling light source module
CN111836420A (en) * 2019-04-17 2020-10-27 漳州立达信光电子科技有限公司 LED driving method, circuit, LED device and driving power module
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 (en) * 2019-06-11 2022-01-04 北京大瞬科技有限公司 Controller, control circuit and method for controlling intelligent equipment by using control circuit
CN112233627B (en) * 2020-12-14 2021-04-20 北京显芯科技有限公司 Control method of backlight circuit, backlight circuit and LCD display screen

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4495814B2 (en) * 1999-12-28 2010-07-07 アビックス株式会社 Dimmable LED lighting fixture
US7204602B2 (en) * 2001-09-07 2007-04-17 Super Vision International, Inc. Light emitting diode pool assembly
CN2640198Y (en) * 2003-07-21 2004-09-08 长春工业大学 Light-modulation controller for large fluorescent lamp
US7296913B2 (en) * 2004-07-16 2007-11-20 Technology Assessment Group Light emitting diode replacement lamp
US7126289B2 (en) * 2004-08-20 2006-10-24 O2 Micro Inc Protection for external electrode fluorescent lamp system
US7339128B2 (en) * 2004-12-29 2008-03-04 George Yen All-color light control switch
CN1925714B (en) * 2005-09-02 2010-05-05 索玉昇 Multistage light modulation control device for gas-discharge lamp and light modulation control method thereof
JP5089193B2 (en) * 2007-02-22 2012-12-05 株式会社小糸製作所 Light emitting device
CN101358719B (en) * 2007-07-30 2012-01-04 太一节能系统股份有限公司 LED lamp source and illuminating system
US9101022B2 (en) * 2008-01-25 2015-08-04 Eveready Battery Company, Inc. Lighting device having boost circuitry
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 (en) * 2009-03-31 2011-07-06 凹凸电子（武汉）有限公司 Drive circuit for controlling electric energy of light source, method and system
JP5600456B2 (en) * 2009-05-19 2014-10-01 ローム株式会社 Light emitting diode drive circuit, light emitting device and display device using the same, and drive circuit protection method
JP5404190B2 (en) * 2009-06-02 2014-01-29 三菱電機株式会社 Lighting device and lighting apparatus
TWI401995B (en) * 2009-06-06 2013-07-11 Anteya Technology Corp Power switch switching dimmer and its LED device
EP2273851A3 (en) * 2009-06-24 2011-05-11 Nxp B.V. System and method for controlling LED cluster
CN101815383B (en) * 2010-03-31 2013-11-06 许波 LED dimming driving device and dimming LED lamp

Also Published As

Publication number Publication date
DE102012200692B4 (en) 2016-02-04
JP5492921B2 (en) 2014-05-14
GB2488208A (en) 2012-08-22
BR102012003599A2 (en) 2014-07-08
JP2012169277A (en) 2012-09-06
CN102387639B (en) 2013-08-21
TW201236512A (en) 2012-09-01
DE102012200692A1 (en) 2012-08-16
TWI478625B (en) 2015-03-21
IN2012DE00317A (en) 2015-04-10
GB2488208B (en) 2013-08-14
CN102387639A (en) 2012-03-21

Similar Documents

Publication Publication Date Title
GB2488208B (en) Circuits and methods for driving light sources
EP2792937A4 (en) Vehicle light
EP2701214A4 (en) Light emitting device and method for manufacturing same
EP2757600A4 (en) Light emitting apparatus and method for manufacturing same
EP2604177A4 (en) Light source device
EP2711605A4 (en) Light
EP2716967A4 (en) Light source device
EP2604178A4 (en) Light source device
EP2696129A4 (en) Lighting apparatus
PL2732319T3 (en) Automotive light
EP2738451A4 (en) Light source device
EP2682046A4 (en) Light source module and light source system
EP2799760A4 (en) Lighting apparatus
EP2741119A4 (en) Light source device
GB2503316B (en) Circuits and methods for driving light sources
EP2799759A4 (en) Lighting apparatus
PL2607777T3 (en) Vehicle light
AU339253S (en) Light
PL2731824T3 (en) Automotive light
EP2715228A4 (en) Lighting apparatus
EP2631931A4 (en) Light source device
EP2733515A4 (en) Light source device
EP2717392A4 (en) Pulsed light source
GB201419181D0 (en) Circuits and methods for driving light sources
GB2513478B8 (en) Circuits and methods for driving light sources

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