JP4481083B2 - 発光源駆動電圧制御装置 - Google Patents

発光源駆動電圧制御装置 Download PDF

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Publication number
JP4481083B2
JP4481083B2 JP2004153505A JP2004153505A JP4481083B2 JP 4481083 B2 JP4481083 B2 JP 4481083B2 JP 2004153505 A JP2004153505 A JP 2004153505A JP 2004153505 A JP2004153505 A JP 2004153505A JP 4481083 B2 JP4481083 B2 JP 4481083B2
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JP
Japan
Prior art keywords
voltage
power supply
light source
supply voltage
drive voltage
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.)
Expired - Fee Related
Application number
JP2004153505A
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English (en)
Japanese (ja)
Other versions
JP2005339831A5 (OSRAM
JP2005339831A (ja
Inventor
和仁 舩江
卓也 柴田
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2004153505A priority Critical patent/JP4481083B2/ja
Priority to US11/115,179 priority patent/US7332870B2/en
Priority to CNA2005100740308A priority patent/CN1703132A/zh
Publication of JP2005339831A publication Critical patent/JP2005339831A/ja
Publication of JP2005339831A5 publication Critical patent/JP2005339831A5/ja
Application granted granted Critical
Publication of JP4481083B2 publication Critical patent/JP4481083B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/041—Controlling the light-intensity of the source
    • H05B39/044—Controlling the light-intensity of the source continuously
    • H05B39/047—Controlling the light-intensity of the source continuously with pulse width modulation from a DC power source
    • 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

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
JP2004153505A 2004-05-24 2004-05-24 発光源駆動電圧制御装置 Expired - Fee Related JP4481083B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2004153505A JP4481083B2 (ja) 2004-05-24 2004-05-24 発光源駆動電圧制御装置
US11/115,179 US7332870B2 (en) 2004-05-24 2005-04-27 Driving voltage controller for light-emitting source
CNA2005100740308A CN1703132A (zh) 2004-05-24 2005-05-24 发光源驱动电压控制装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004153505A JP4481083B2 (ja) 2004-05-24 2004-05-24 発光源駆動電圧制御装置

Publications (3)

Publication Number Publication Date
JP2005339831A JP2005339831A (ja) 2005-12-08
JP2005339831A5 JP2005339831A5 (OSRAM) 2006-12-21
JP4481083B2 true JP4481083B2 (ja) 2010-06-16

Family

ID=35374570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004153505A Expired - Fee Related JP4481083B2 (ja) 2004-05-24 2004-05-24 発光源駆動電圧制御装置

Country Status (3)

Country Link
US (1) US7332870B2 (OSRAM)
JP (1) JP4481083B2 (OSRAM)
CN (1) CN1703132A (OSRAM)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7928660B2 (en) * 2008-05-30 2011-04-19 Jeremy F. Skene Vehicular conspicuity lamp with rapidly modulated intensity
CN102045913A (zh) * 2009-10-13 2011-05-04 洋鑫科技股份有限公司 调光器及应用此调光器的照明装置
JP2013033644A (ja) * 2011-08-02 2013-02-14 Panasonic Corp Ｌｅｄ駆動装置及びそれを用いた照明装置
CN103050088B (zh) * 2011-10-11 2016-08-03 联芯科技有限公司 终端及其lcd背光驱动方法
JP6099895B2 (ja) * 2012-07-13 2017-03-22 株式会社アイ・ライティング・システム 照明用電源装置
TWI699750B (zh) * 2019-01-15 2020-07-21 友達光電股份有限公司 驅動方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5012392A (en) * 1989-02-13 1991-04-30 Hochstein Peter A Automatic battery powered video light
JPH11233276A (ja) 1998-02-13 1999-08-27 Fms Audio Sdn Bhd カーオーディオ機器の照明調整方法及び照明調整回路
JP2000214825A (ja) * 1999-01-20 2000-08-04 Nec Corp バックライト表示装置及び方法
FI106770B (fi) * 1999-01-22 2001-03-30 Nokia Mobile Phones Ltd Valaiseva elektroninen laite ja valaisumenetelmä
JP2002231470A (ja) * 2001-02-05 2002-08-16 Pioneer Electronic Corp 発光ダイオード駆動回路
JP4116327B2 (ja) 2002-05-21 2008-07-09 株式会社オートネットワーク技術研究所 ランプ点灯回路及びランプ点灯方法
TW588563B (en) * 2002-07-01 2004-05-21 Chuntex Electronic Co Ltd Brightness adjustment method and device of liquid crystal display

Also Published As

Publication number Publication date
US7332870B2 (en) 2008-02-19
CN1703132A (zh) 2005-11-30
JP2005339831A (ja) 2005-12-08
US20050258781A1 (en) 2005-11-24

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