JP5006180B2 - 車両用灯具の点灯制御装置 - Google Patents
車両用灯具の点灯制御装置 Download PDFInfo
- Publication number
- JP5006180B2 JP5006180B2 JP2007336070A JP2007336070A JP5006180B2 JP 5006180 B2 JP5006180 B2 JP 5006180B2 JP 2007336070 A JP2007336070 A JP 2007336070A JP 2007336070 A JP2007336070 A JP 2007336070A JP 5006180 B2 JP5006180 B2 JP 5006180B2
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- Prior art keywords
- semiconductor light
- current
- led
- light source
- temperature
- 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.)
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-
- 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
- H05B45/18—Controlling the intensity of the light using temperature feedback
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
Claims (5)
- 第1〜第N(Nは1以上の整数)の半導体光源へ駆動電流を供給するM(Mは1以上の整数)個のスイッチングレギュレータと、
それぞれ前記各半導体光源に接続され前記駆動電流を検出する第1〜第Nの電流検出部と、それぞれ前記各半導体光源に接続された第1〜第Nのスイッチ部とを含み、それぞれ前記各電流検出部によって検出された前記駆動電流の大きさに応じて前記各スイッチ部の動作を行う第1〜第Nの電流駆動手段と、
温度を検出し検出された温度が予め規定された温度以上になったときに温度検出信号を送出する温度検出器と、
前記温度検出信号を受けて前記各半導体光源に供給する前記駆動電流を減少させるように前記各電流駆動手段を制御する制御手段とを有し、
前記制御手段は、前記駆動電流を減少させる前記各半導体光源の優先順位を設定し、前記優先順位が高い半導体光源から順に前記駆動電流を減少させる
ことを特徴とする車両用灯具の点灯制御装置。 - 前記優先順位は予め設定された前記各半導体光源の耐熱性に関する情報を含む熱的環境情報に基づいて設定される
ことを特徴とする請求項1に記載の車両用灯具の点灯制御装置。 - 前記熱的環境情報は前記各半導体光源の用途に関する情報を含む光源機能情報に基づいて設定される
ことを特徴とする請求項2に記載の車両用灯具の点灯制御装置。 - 前記光源機能情報は、前記各半導体光源の点灯頻度および点灯時における光量の内の少なくとも一つの情報である
ことを特徴とする請求項2に記載の車両用灯具の点灯制御装置。 - 前記スイッチングレギュレータを複数個設け、
前記各半導体光源の内、前記優先順位の最も高い半導体光源と二番目に高い半導体光源に対してそれぞれ異なる前記スイッチングレギュレータから前記駆動電流が供給される
ことを特徴とする請求項1、請求項2、請求項3又は請求項4に記載の車両用灯具の点灯制御装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007336070A JP5006180B2 (ja) | 2007-12-27 | 2007-12-27 | 車両用灯具の点灯制御装置 |
CN2008101780058A CN101472368B (zh) | 2007-12-27 | 2008-12-08 | 车辆用灯具的点灯控制装置及其点灯控制方法 |
KR1020080131098A KR101021563B1 (ko) | 2007-12-27 | 2008-12-22 | 차량용 등기구의 점등 제어 장치 |
EP08022351.4A EP2077697B1 (en) | 2007-12-27 | 2008-12-23 | Lighting controller of lighting device for vehicle |
US12/342,690 US8110989B2 (en) | 2007-12-27 | 2008-12-23 | Lighting controller of lighting device for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007336070A JP5006180B2 (ja) | 2007-12-27 | 2007-12-27 | 車両用灯具の点灯制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009154748A JP2009154748A (ja) | 2009-07-16 |
JP5006180B2 true JP5006180B2 (ja) | 2012-08-22 |
Family
ID=40474807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007336070A Expired - Fee Related JP5006180B2 (ja) | 2007-12-27 | 2007-12-27 | 車両用灯具の点灯制御装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8110989B2 (ja) |
EP (1) | EP2077697B1 (ja) |
JP (1) | JP5006180B2 (ja) |
KR (1) | KR101021563B1 (ja) |
CN (1) | CN101472368B (ja) |
Families Citing this family (30)
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US8330388B2 (en) | 2008-12-12 | 2012-12-11 | O2Micro, Inc. | Circuits and methods for driving light sources |
US8508150B2 (en) | 2008-12-12 | 2013-08-13 | O2Micro, Inc. | Controllers, systems and methods for controlling dimming of light sources |
US9232591B2 (en) | 2008-12-12 | 2016-01-05 | O2Micro Inc. | Circuits and methods for driving light sources |
CN102014540B (zh) | 2010-03-04 | 2011-12-28 | 凹凸电子(武汉)有限公司 | 驱动电路及控制光源的电力的控制器 |
US8378588B2 (en) | 2008-12-12 | 2013-02-19 | O2Micro Inc | Circuits and methods for driving light sources |
US8076867B2 (en) | 2008-12-12 | 2011-12-13 | O2Micro, Inc. | Driving circuit with continuous dimming function for driving light sources |
US9386653B2 (en) | 2008-12-12 | 2016-07-05 | 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 |
US8339067B2 (en) | 2008-12-12 | 2012-12-25 | O2Micro, Inc. | Circuits and methods for driving light sources |
US8044608B2 (en) | 2008-12-12 | 2011-10-25 | O2Micro, Inc | Driving circuit with dimming controller for driving light sources |
US9253843B2 (en) | 2008-12-12 | 2016-02-02 | 02Micro Inc | Driving circuit with dimming controller for driving light sources |
WO2011093107A1 (ja) * | 2010-02-01 | 2011-08-04 | パナソニック株式会社 | 発光素子駆動装置及び携帯機器 |
CN103391006A (zh) | 2012-05-11 | 2013-11-13 | 凹凸电子(武汉)有限公司 | 光源驱动电路、控制电力转换器的控制器及方法 |
US8698419B2 (en) | 2010-03-04 | 2014-04-15 | O2Micro, Inc. | Circuits and methods for driving light sources |
US8111017B2 (en) | 2010-07-12 | 2012-02-07 | O2Micro, Inc | Circuits and methods for controlling dimming of a light source |
DE102011083025B4 (de) * | 2011-09-20 | 2016-10-20 | Automotive Lighting Reutlingen Gmbh | Beleuchtungseinrichtung für ein Fahrzeug |
DE102011055594A1 (de) * | 2011-11-22 | 2013-05-23 | Hella Kgaa Hueck & Co. | Leuchte, insbesondere LED-Scheinwerfer, für ein Kraftfahrzeug. Steuergerät für die Leuchte und Anordnung aus der Leuchte und dem Steuergerät |
JP2013139182A (ja) * | 2011-12-28 | 2013-07-18 | Ichikoh Ind Ltd | 車両用灯具 |
KR101334042B1 (ko) * | 2012-11-30 | 2013-11-28 | 주식회사 실리콘웍스 | Led 조명 장치 및 그의 전류 레귤레이터와 전류 레귤레이팅 방법 |
JP2014159248A (ja) * | 2013-02-20 | 2014-09-04 | Stanley Electric Co Ltd | 車両用灯具 |
CN103342108B (zh) * | 2013-07-22 | 2015-11-25 | 奇瑞汽车股份有限公司 | 一种车灯驱动电路 |
JP6278298B2 (ja) * | 2013-09-10 | 2018-02-14 | パナソニックIpマネジメント株式会社 | 点灯装置及びそれを用いた前照灯装置、並びに車両 |
JP6249334B2 (ja) | 2013-11-22 | 2017-12-20 | パナソニックIpマネジメント株式会社 | 点灯装置及び該点灯装置を具備する照明器具 |
JP6521693B2 (ja) * | 2015-03-27 | 2019-05-29 | 株式会社小糸製作所 | 車両灯具システム |
JP6697737B2 (ja) | 2016-04-26 | 2020-05-27 | パナソニックIpマネジメント株式会社 | 点灯装置、及びそれを備える車両用照明装置 |
JP6846945B2 (ja) * | 2017-02-22 | 2021-03-24 | 株式会社小糸製作所 | 光源駆動装置、車両用灯具 |
JP6820779B2 (ja) * | 2017-03-21 | 2021-01-27 | 株式会社小糸製作所 | 点灯回路および車両用灯具 |
JP7172143B2 (ja) * | 2018-05-31 | 2022-11-16 | 市光工業株式会社 | 車両用灯具 |
DE102019112764A1 (de) * | 2019-05-15 | 2020-11-19 | Marelli Automotive Lighting Reutlingen (Germany) GmbH | Anordnung und Verfahren zum Betrieb eines Halbleiterbauelements sowie Leuchte |
JPWO2022131139A1 (ja) * | 2020-12-15 | 2022-06-23 |
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JP2004276737A (ja) * | 2003-03-14 | 2004-10-07 | Koito Mfg Co Ltd | 車両用灯具 |
JP2004330819A (ja) * | 2003-05-01 | 2004-11-25 | Koito Mfg Co Ltd | 車両用灯具 |
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US20050030192A1 (en) * | 2003-08-08 | 2005-02-10 | Weaver James T. | Power supply for LED airfield lighting |
JP4148908B2 (ja) * | 2004-02-16 | 2008-09-10 | 株式会社小糸製作所 | 車両用灯具 |
JP4170928B2 (ja) * | 2004-02-18 | 2008-10-22 | 株式会社小糸製作所 | 車両用灯具 |
US7202608B2 (en) * | 2004-06-30 | 2007-04-10 | Tir Systems Ltd. | Switched constant current driving and control circuit |
JP4400880B2 (ja) | 2004-10-05 | 2010-01-20 | 株式会社小糸製作所 | 車両用灯具の点灯制御回路 |
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JP4535383B2 (ja) * | 2005-07-20 | 2010-09-01 | 株式会社小糸製作所 | 車両用灯具の点灯制御装置 |
JP2007055424A (ja) * | 2005-08-24 | 2007-03-08 | Toyota Motor Corp | 灯具 |
US7710050B2 (en) * | 2005-11-17 | 2010-05-04 | Magna International Inc | Series connected power supply for semiconductor-based vehicle lighting systems |
JP4457312B2 (ja) * | 2006-01-12 | 2010-04-28 | 株式会社デンソー | 車両用ヘッドランプ装置 |
DE102006026938A1 (de) | 2006-06-09 | 2007-12-13 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | LED Lichtquelle mit konstanter Intensität während der Betriebsdauer |
KR100767385B1 (ko) * | 2006-08-11 | 2007-10-17 | 주식회사 엠앤씨라이팅 | 조명 구동장치 및 그 회로 |
JP5042798B2 (ja) * | 2007-12-17 | 2012-10-03 | 株式会社小糸製作所 | 車両用灯具の点灯制御装置 |
JP2009184592A (ja) * | 2008-02-08 | 2009-08-20 | Koito Mfg Co Ltd | 車両用灯具の点灯制御装置 |
-
2007
- 2007-12-27 JP JP2007336070A patent/JP5006180B2/ja not_active Expired - Fee Related
-
2008
- 2008-12-08 CN CN2008101780058A patent/CN101472368B/zh active Active
- 2008-12-22 KR KR1020080131098A patent/KR101021563B1/ko active IP Right Grant
- 2008-12-23 US US12/342,690 patent/US8110989B2/en not_active Expired - Fee Related
- 2008-12-23 EP EP08022351.4A patent/EP2077697B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101472368A (zh) | 2009-07-01 |
EP2077697A3 (en) | 2013-03-20 |
CN101472368B (zh) | 2012-05-30 |
KR20090071414A (ko) | 2009-07-01 |
EP2077697A2 (en) | 2009-07-08 |
US20090167187A1 (en) | 2009-07-02 |
EP2077697B1 (en) | 2015-08-26 |
US8110989B2 (en) | 2012-02-07 |
KR101021563B1 (ko) | 2011-03-16 |
JP2009154748A (ja) | 2009-07-16 |
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