JP4128549B2 - 車両用灯具 - Google Patents
車両用灯具 Download PDFInfo
- Publication number
- JP4128549B2 JP4128549B2 JP2004164964A JP2004164964A JP4128549B2 JP 4128549 B2 JP4128549 B2 JP 4128549B2 JP 2004164964 A JP2004164964 A JP 2004164964A JP 2004164964 A JP2004164964 A JP 2004164964A JP 4128549 B2 JP4128549 B2 JP 4128549B2
- Authority
- JP
- Japan
- Prior art keywords
- light source
- output
- voltage
- unit
- source unit
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33561—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having more than one ouput with independent control
-
- 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]
- H05B45/382—Switched mode power supply [SMPS] with galvanic isolation between input and output
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Dc-Dc Converters (AREA)
Description
Claims (6)
- 車両に用いられる車両用灯具であって、
半導体発光素子を有し、互いに並列に接続された、第1から第Nの、N個(Nは3以上の整数)の複数の光源部と、
前記複数の光源に電圧を印加する電圧出力部と、
前記電圧出力部と、前記複数の光源との間に設けられた、第1から第(N−1)の、(N−1)個の出力側トランスと
を備え、
第k(kは1≦k≦N−1を満たす整数)の前記出力側トランスは、
第kの前記光源部と直列に接続された出力側コイルと、
第(k+1)から第Nの前記光源部のそれぞれと直列に接続されており、前記第kの光源部と直列に接続された出力側コイルが発生する磁束を打ち消す方向の磁束を、前記電圧出力部から供給される電流に応じて発生する(N−k)個の出力側コイルと
を有し、
前記出力側コイルは、前記電圧出力部が前記対応する光源部に供給する電流をそれぞれ流す車両用灯具。 - それぞれの前記光源部に対して、当該光源部と、当該光源部に対応する前記出力側コイルとの間のノードにおける電圧が予め定められた値よりも上昇するのを検知する電圧上昇検知部と、
いずれかの前記光源部についての前記ノードの電圧の上昇を前記電圧上昇検知部が検知した場合に、少なくとも前記ノードの電圧の上昇が検知された前記光源部に対して、前記電圧出力部による電圧の出力を停止させる出力制御部と
を更に備える請求項1に記載の車両用灯具。 - 前記電圧出力部は、1次コイルと、前記複数の光源部に対応して設けられた複数の2次コイルとを含む電源部用トランスを有し、
前記複数の2次コイルのそれぞれは、対応する前記光源部、及び当該光源部に対応する前記出力側コイルと、直列に接続された請求項1に記載の車両用灯具。 - それぞれの前記光源部に対応してそれぞれ設けられ、対応する前記光源部、及び当該光源部に対応する前記出力側コイルとそれぞれ直列に接続された複数の直列抵抗と、
それぞれの前記直列抵抗の両端に生じる電圧が、前記複数の直列抵抗に対して共通に定められた設定電圧と等しくなるように、前記電圧出力部の出力電圧を制御する出力制御部と
を更に備える請求項1に記載の車両用灯具。 - 前記複数の出力側コイルは、巻き線が分離するように形成された請求項1に記載の車両用灯具。
- 前記電圧出力部から前記光源部に供給される電流が減少した場合に、前記出力側コイルの漏れインダクタンスに応じた電流を前記光源部に供給する半導体素子を更に備える請求項1に記載の車両用灯具。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004164964A JP4128549B2 (ja) | 2004-01-22 | 2004-06-02 | 車両用灯具 |
CNB2004100781498A CN100411201C (zh) | 2004-01-22 | 2004-09-17 | 电源装置和车辆用灯具 |
US11/040,365 US7327586B2 (en) | 2004-01-22 | 2005-01-21 | Power supply unit and lighting device for vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004014935 | 2004-01-22 | ||
JP2004164964A JP4128549B2 (ja) | 2004-01-22 | 2004-06-02 | 車両用灯具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005237185A JP2005237185A (ja) | 2005-09-02 |
JP4128549B2 true JP4128549B2 (ja) | 2008-07-30 |
Family
ID=34863431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004164964A Expired - Fee Related JP4128549B2 (ja) | 2004-01-22 | 2004-06-02 | 車両用灯具 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7327586B2 (ja) |
JP (1) | JP4128549B2 (ja) |
CN (1) | CN100411201C (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4451376B2 (ja) * | 2005-11-04 | 2010-04-14 | 株式会社小糸製作所 | 車両用灯具の点灯制御装置 |
EP1788850B1 (en) * | 2005-11-22 | 2008-06-04 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | An arrangement for driving LED cells |
JP2008131840A (ja) * | 2006-11-24 | 2008-06-05 | Stanley Electric Co Ltd | 電源装置 |
JP2008131839A (ja) * | 2006-11-24 | 2008-06-05 | Stanley Electric Co Ltd | 電源装置 |
JP5334372B2 (ja) * | 2007-02-15 | 2013-11-06 | 株式会社小糸製作所 | 発光装置 |
JP4930522B2 (ja) | 2009-02-03 | 2012-05-16 | ソニー株式会社 | 電源回路、および情報処理装置 |
JP4680306B2 (ja) * | 2009-02-05 | 2011-05-11 | 三菱電機株式会社 | 電源回路及び照明装置 |
JP5289084B2 (ja) * | 2009-02-05 | 2013-09-11 | 三菱電機株式会社 | 電源回路及び照明装置 |
US20100295471A1 (en) * | 2009-05-25 | 2010-11-25 | Sanken Electric Co., Ltd. | Current balancing apparatus |
US9078328B2 (en) * | 2013-03-14 | 2015-07-07 | Grote Industries, Inc. | Vehicle lighting outage detection circuit |
JP5988910B2 (ja) * | 2013-04-24 | 2016-09-07 | ニチコン株式会社 | 電源装置 |
CN104038210B (zh) * | 2014-06-27 | 2017-08-25 | 青岛歌尔声学科技有限公司 | 一种即插型接口电路及调试板连接装置 |
TWI581660B (zh) * | 2015-09-07 | 2017-05-01 | 隆達電子股份有限公司 | 發光二極體裝置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55144774A (en) | 1979-04-28 | 1980-11-11 | Tdk Corp | Multi-output switching regulator |
JPS60139870A (ja) | 1983-12-26 | 1985-07-24 | 伴 實 | 絹繊維の改質処理方法 |
JPH0793819B2 (ja) | 1985-05-20 | 1995-10-09 | 富士通株式会社 | 定電流供給回路 |
EP0576706B1 (de) | 1992-06-30 | 1995-06-07 | Siemens Aktiengesellschaft | Schaltungsanordnung zur Stromversorgung mit wenigstens zwei Ausgängen |
JPH0686550A (ja) * | 1992-09-03 | 1994-03-25 | Nippon Telegr & Teleph Corp <Ntt> | 2石フォワードコンバータ |
US5363323A (en) * | 1993-08-11 | 1994-11-08 | International Business Machines Corporation | Power supply with plural outputs supplying dynamic and steady loads |
CA2159842A1 (en) * | 1994-12-05 | 1996-06-06 | Joe A. Ortiz | Diode drive current source |
JPH1168161A (ja) | 1997-08-15 | 1999-03-09 | Digital Electron Corp | 発光装置 |
JP3228215B2 (ja) * | 1998-03-11 | 2001-11-12 | 株式会社村田製作所 | スイッチング電源装置 |
JP2000050631A (ja) * | 1998-07-30 | 2000-02-18 | Nec Eng Ltd | フォワードコンバータ型電圧生成回路及び複数電圧生成方法 |
US6493243B1 (en) * | 1999-12-01 | 2002-12-10 | Acme Electric Corporation | Redundant power system and power supply therefor |
US6369525B1 (en) * | 2000-11-21 | 2002-04-09 | Philips Electronics North America | White light-emitting-diode lamp driver based on multiple output converter with output current mode control |
JP2002231013A (ja) | 2001-01-29 | 2002-08-16 | Koito Mfg Co Ltd | 発光ダイオード及びこれを用いた車両用灯具 |
JP2003187614A (ja) | 2001-12-19 | 2003-07-04 | Toyoda Gosei Co Ltd | 車両用リアコンビネーションランプ装置 |
JP2003317978A (ja) | 2002-04-19 | 2003-11-07 | Stanley Electric Co Ltd | 車載用led灯具の点灯回路 |
-
2004
- 2004-06-02 JP JP2004164964A patent/JP4128549B2/ja not_active Expired - Fee Related
- 2004-09-17 CN CNB2004100781498A patent/CN100411201C/zh not_active Expired - Fee Related
-
2005
- 2005-01-21 US US11/040,365 patent/US7327586B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1645635A (zh) | 2005-07-27 |
JP2005237185A (ja) | 2005-09-02 |
US7327586B2 (en) | 2008-02-05 |
US20050184588A1 (en) | 2005-08-25 |
CN100411201C (zh) | 2008-08-13 |
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