FR2845050B1 - Lampe de vehicule avec circuit de detection de defaillance de diode photoemissive - Google Patents

Lampe de vehicule avec circuit de detection de defaillance de diode photoemissive

Info

Publication number
FR2845050B1
FR2845050B1 FR0311494A FR0311494A FR2845050B1 FR 2845050 B1 FR2845050 B1 FR 2845050B1 FR 0311494 A FR0311494 A FR 0311494A FR 0311494 A FR0311494 A FR 0311494A FR 2845050 B1 FR2845050 B1 FR 2845050B1
Authority
FR
France
Prior art keywords
photodegissive
detection circuit
failure detection
vehicle lamp
diode failure
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
FR0311494A
Other languages
English (en)
Other versions
FR2845050A1 (fr
Inventor
Masayasu Ito
Shogo Sugimori
Hitoshi Takeda
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.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing Co Ltd
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 Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Publication of FR2845050A1 publication Critical patent/FR2845050A1/fr
Application granted granted Critical
Publication of FR2845050B1 publication Critical patent/FR2845050B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/58—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving end of life detection of LEDs
    • 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
    • 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
    • H05B45/52—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a parallel array of LEDs
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/21—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/21—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel
    • H05B47/22—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel with communication between the lamps and a central unit
    • 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]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode
FR0311494A 2002-10-01 2003-10-01 Lampe de vehicule avec circuit de detection de defaillance de diode photoemissive Expired - Fee Related FR2845050B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002289288A JP2004122913A (ja) 2002-10-01 2002-10-01 車両用灯具

Publications (2)

Publication Number Publication Date
FR2845050A1 FR2845050A1 (fr) 2004-04-02
FR2845050B1 true FR2845050B1 (fr) 2011-04-29

Family

ID=31987156

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0311494A Expired - Fee Related FR2845050B1 (fr) 2002-10-01 2003-10-01 Lampe de vehicule avec circuit de detection de defaillance de diode photoemissive

Country Status (4)

Country Link
US (1) US6917166B2 (fr)
JP (1) JP2004122913A (fr)
DE (1) DE10345422B4 (fr)
FR (1) FR2845050B1 (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4087211B2 (ja) * 2002-10-08 2008-05-21 株式会社小糸製作所 車両用灯具
JP2004330819A (ja) * 2003-05-01 2004-11-25 Koito Mfg Co Ltd 車両用灯具
JP4439457B2 (ja) 2005-02-14 2010-03-24 株式会社小糸製作所 車両用灯具システム
JP2007258033A (ja) * 2006-03-24 2007-10-04 Toshiba Lighting & Technology Corp 表示装置
FR2900534B1 (fr) * 2006-04-28 2011-01-14 Peugeot Citroen Automobiles Sa Systeme et procede de detection d'une defaillance d'une source lumineuse, source lumineuse pour ce systeme
US7649327B2 (en) * 2006-05-22 2010-01-19 Permlight Products, Inc. System and method for selectively dimming an LED
US7876103B2 (en) * 2007-02-27 2011-01-25 GE Lighting Solutions, LLC LED chain failure detection
JP4923197B2 (ja) * 2007-05-30 2012-04-25 スタンレー電気株式会社 車両用灯具
JP5079580B2 (ja) * 2008-04-15 2012-11-21 株式会社小糸製作所 点灯制御装置
DE102008048701B4 (de) * 2008-09-24 2020-06-04 HELLA GmbH & Co. KGaA Verfahren zum Betrieb einer Reihenschaltung von mindestens zwei LED's
JP5187756B2 (ja) * 2008-11-10 2013-04-24 株式会社小糸製作所 車両用灯具の発光装置
US20100226139A1 (en) * 2008-12-05 2010-09-09 Permlight Products, Inc. Led-based light engine
DE102009008465A1 (de) * 2009-02-10 2010-08-19 Siemens Aktiengesellschaft Leistungsschalter sowie Verfahren zum Überwachen der Funktionsfähigkeit eines Leistungsschalters
DE102010049716A1 (de) 2010-10-26 2012-04-26 Automotive Lighting Reutlingen Gmbh Verbund aus einem Bordnetzsteuergerät und wenigstens einem Lichtsteuergerät eines Kraftfahrzeugs
DE102010064149A1 (de) * 2010-12-24 2012-06-28 Johann & Konen Gmbh & Co. Kg Verfahren zur Sicherstellung der korrekten Auswertung von LED-Leuchten in Kombination mit Fahrzeug-Bordcomputern
KR20120083005A (ko) 2011-01-17 2012-07-25 삼성전자주식회사 오류 감지 장치 및 방법
DE102011113080A1 (de) * 2011-02-18 2012-08-23 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zur Diagnose von Leuchtmitteln in einem Fahrzeug
KR20130063863A (ko) * 2011-12-07 2013-06-17 매그나칩 반도체 유한회사 Ｌｅｄ 어레이 오픈여부 감지회로 및 이를 이용한 ｌｅｄ 구동장치
JP5948202B2 (ja) * 2012-10-02 2016-07-06 市光工業株式会社 車両用ターンランプユニットの通電制御回路及び車両用ターンランプユニットの通電制御方法
SE539826C2 (sv) 2014-10-29 2017-12-12 Scania Cv Ab Compensation unit configured to be connected between a control unit and at least one LED lamp
DE102016121930A1 (de) * 2016-11-15 2018-05-17 Ledvance Gmbh Leuchtsystem
JP7248657B2 (ja) * 2018-04-25 2023-03-29 株式会社小糸製作所 リアターンランプ
US11465705B2 (en) 2018-06-05 2022-10-11 Indian Motorcycle International, LLC Adaptive lighting system
US11027790B2 (en) * 2018-06-05 2021-06-08 Indian Motorcycle International, LLC Adaptive lighting system
US10850661B2 (en) * 2018-06-05 2020-12-01 Indian Motorcycle International, LLC Adaptive lighting system
KR102034966B1 (ko) * 2018-12-04 2019-10-22 매그나칩 반도체 유한회사 Ｌｅｄ 어레이 오픈여부 감지회로 및 이를 이용한 ｌｅｄ 구동장치
CN113597056A (zh) * 2020-04-30 2021-11-02 常州星宇车灯股份有限公司 一种使灯泡和led同时工作且实现n-1功能的电路及控制方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195281A (en) * 1977-03-21 1980-03-25 Essex Group, Inc. Lamp outage indicator circuit
DE29515223U1 (de) * 1995-09-26 1995-11-23 Siemens Ag Leiterplatte
DE19618010C1 (de) * 1996-05-04 1997-07-03 Hella Kg Hueck & Co Blinklichtsignalanlage für Kraftfahrzeuge
JP3250144B2 (ja) 1997-02-07 2002-01-28 株式会社マツショウ 自動車用灯火類断線検出装置
DE19852351A1 (de) * 1998-11-13 2000-05-18 Hella Kg Hueck & Co Diagnosesystem für eine LED-Leuchte in einem Kraftfahrzeug
EP1006506A1 (fr) * 1998-12-03 2000-06-07 Hewlett-Packard Company Affichage optique pour véhicule
US6362578B1 (en) * 1999-12-23 2002-03-26 Stmicroelectronics, Inc. LED driver circuit and method
DE10107578A1 (de) * 2001-02-17 2002-08-29 Hella Kg Hueck & Co Lichtanlage für Kraftfahrzeuge

Also Published As

Publication number Publication date
DE10345422B4 (de) 2009-06-04
FR2845050A1 (fr) 2004-04-02
JP2004122913A (ja) 2004-04-22
DE10345422A1 (de) 2004-04-22
US20040061450A1 (en) 2004-04-01
US6917166B2 (en) 2005-07-12

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20120629