DE602005025186D1 - LED Ansteuerschaltung - Google Patents

LED Ansteuerschaltung

Info

Publication number
DE602005025186D1
DE602005025186D1 DE602005025186T DE602005025186T DE602005025186D1 DE 602005025186 D1 DE602005025186 D1 DE 602005025186D1 DE 602005025186 T DE602005025186 T DE 602005025186T DE 602005025186 T DE602005025186 T DE 602005025186T DE 602005025186 D1 DE602005025186 D1 DE 602005025186D1
Authority
DE
Germany
Prior art keywords
control circuit
led control
led
circuit
control
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
DE602005025186T
Other languages
English (en)
Inventor
Yoshiaki Hachiya
Ryutaro Arakawa
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.)
Panasonic Corp
Original Assignee
Panasonic Corp
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
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of DE602005025186D1 publication Critical patent/DE602005025186D1/de
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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
DE602005025186T 2004-10-01 2005-09-29 LED Ansteuerschaltung Active DE602005025186D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004290713A JP4060840B2 (ja) 2004-10-01 2004-10-01 発光ダイオード駆動用半導体回路、及びそれを有する発光ダイオード駆動装置

Publications (1)

Publication Number Publication Date
DE602005025186D1 true DE602005025186D1 (de) 2011-01-20

Family

ID=35432588

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005025186T Active DE602005025186D1 (de) 2004-10-01 2005-09-29 LED Ansteuerschaltung

Country Status (7)

Country Link
US (1) US7115888B2 (de)
EP (1) EP1643810B1 (de)
JP (1) JP4060840B2 (de)
KR (1) KR100716859B1 (de)
CN (1) CN1780512B (de)
DE (1) DE602005025186D1 (de)
TW (1) TWI303952B (de)

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US8581517B2 (en) * 2009-09-17 2013-11-12 O2 Micro, Inc Systems and methods for driving a light source
US9429965B2 (en) 2009-11-03 2016-08-30 Advanced Analogic Technologies Incorporated Multiple chip voltage feedback technique for driving LED's
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CN102446492A (zh) * 2010-10-08 2012-05-09 联咏科技股份有限公司 短路侦测电路及方法与发光二极管驱动芯片及装置
US8872810B2 (en) 2010-10-12 2014-10-28 National Semiconductor Corporation Combined digital modulation and current dimming control for light emitting diodes
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TW201236500A (en) * 2011-02-24 2012-09-01 Hanergy Technologies Inc LED driver circuit
TWI465148B (zh) 2011-03-17 2014-12-11 Green Solution Tech Co Ltd 發光二極體驅動電路及發光二極體驅動控制器
JP2012216485A (ja) 2011-03-30 2012-11-08 Toshiba Lighting & Technology Corp スイッチング電源及び照明装置
US9577610B2 (en) * 2011-04-05 2017-02-21 Advanced Analogic Technologies Incorporated Active LED voltage clamp
WO2012172420A1 (en) 2011-06-17 2012-12-20 Stevan Pokrajac Light emitting diode driver circuit
TW201310883A (zh) * 2011-08-17 2013-03-01 Memchip Technology Co Ltd 昇壓電路
JP4975883B1 (ja) * 2011-12-22 2012-07-11 パナソニック株式会社 発光ダイオード用駆動回路及びｌｅｄ光源
EP2819488B1 (de) * 2013-06-24 2017-03-15 Dialog Semiconductor GmbH VCC-Ladungs- und Freilauferkennung über einen quellengesteuerten MOS-Transistor
JP6206001B2 (ja) * 2013-08-30 2017-10-04 サンケン電気株式会社 Ｌｅｄ駆動回路
KR102158801B1 (ko) 2013-11-29 2020-09-23 삼성디스플레이 주식회사 발광 다이오드를 포함하는 발광 장치 및 그 구동 방법
CN104797060B (zh) 2015-05-13 2017-11-10 昂宝电子（上海）有限公司 用于发光二极管照明系统中的温度控制的系统和方法
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Also Published As

Publication number Publication date
TW200618671A (en) 2006-06-01
US20060072324A1 (en) 2006-04-06
JP2006108260A (ja) 2006-04-20
KR20060051631A (ko) 2006-05-19
US7115888B2 (en) 2006-10-03
CN1780512B (zh) 2011-06-01
TWI303952B (en) 2008-12-01
EP1643810A1 (de) 2006-04-05
KR100716859B1 (ko) 2007-05-09
JP4060840B2 (ja) 2008-03-12
CN1780512A (zh) 2006-05-31
EP1643810B1 (de) 2010-12-08

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