JP2006049423A5 - - Google Patents

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Publication number
JP2006049423A5
JP2006049423A5 JP2004225541A JP2004225541A JP2006049423A5 JP 2006049423 A5 JP2006049423 A5 JP 2006049423A5 JP 2004225541 A JP2004225541 A JP 2004225541A JP 2004225541 A JP2004225541 A JP 2004225541A JP 2006049423 A5 JP2006049423 A5 JP 2006049423A5
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JP
Japan
Prior art keywords
voltage
constant current
drive circuit
current drive
control means
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
JP2004225541A
Other languages
English (en)
Japanese (ja)
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JP2006049423A (ja
JP4642406B2 (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2004225541A priority Critical patent/JP4642406B2/ja
Priority claimed from JP2004225541A external-priority patent/JP4642406B2/ja
Publication of JP2006049423A publication Critical patent/JP2006049423A/ja
Publication of JP2006049423A5 publication Critical patent/JP2006049423A5/ja
Application granted granted Critical
Publication of JP4642406B2 publication Critical patent/JP4642406B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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JP2004225541A 2004-08-02 2004-08-02 定電流駆動回路 Expired - Fee Related JP4642406B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004225541A JP4642406B2 (ja) 2004-08-02 2004-08-02 定電流駆動回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004225541A JP4642406B2 (ja) 2004-08-02 2004-08-02 定電流駆動回路

Publications (3)

Publication Number Publication Date
JP2006049423A JP2006049423A (ja) 2006-02-16
JP2006049423A5 true JP2006049423A5 (OSRAM) 2007-08-16
JP4642406B2 JP4642406B2 (ja) 2011-03-02

Family

ID=36027657

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004225541A Expired - Fee Related JP4642406B2 (ja) 2004-08-02 2004-08-02 定電流駆動回路

Country Status (1)

Country Link
JP (1) JP4642406B2 (OSRAM)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4839023B2 (ja) * 2005-06-22 2011-12-14 Ｆｄｋ株式会社 発光ダイオード調光回路および照明装置
JP2007281424A (ja) 2006-03-15 2007-10-25 Casio Comput Co Ltd 発光素子の駆動装置、発光素子の駆動方法及び発光素子の駆動プログラム
KR101243144B1 (ko) * 2006-04-28 2013-03-13 엘지이노텍 주식회사 Ｌｃｄ 패널용 ｌｅｄ 드라이버의 구동회로
WO2007148298A1 (en) * 2006-06-22 2007-12-27 Koninklijke Philips Electronics N.V. Drive circuit for driving a load with pulsed current
KR101101818B1 (ko) 2006-06-28 2012-01-05 삼성전자주식회사 디스플레이장치 및 그 제어방법
JP4267647B2 (ja) 2006-08-10 2009-05-27 林化学工業株式会社 発光装置
JP4845694B2 (ja) * 2006-11-30 2011-12-28 セイコーインスツル株式会社 Ｌｅｄ駆動回路
JP2008283033A (ja) * 2007-05-11 2008-11-20 Ricoh Co Ltd 駆動回路及びその駆動回路を有する電子機器
US9101022B2 (en) * 2008-01-25 2015-08-04 Eveready Battery Company, Inc. Lighting device having boost circuitry
KR101563208B1 (ko) 2009-02-04 2015-10-28 삼성디스플레이 주식회사 광원 구동 장치 및 이를 포함하는 광원 장치
US8599333B2 (en) * 2009-11-04 2013-12-03 Rohm Co., Ltd. Circuit and method for driving LED string for backlight, and backlight and display device using the circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7071762B2 (en) * 2001-01-31 2006-07-04 Koninklijke Philips Electronics N.V. Supply assembly for a led lighting module

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