FR3029268B1 - Circuit d'eclairage et lampe pour vehicule - Google Patents

Circuit d'eclairage et lampe pour vehicule Download PDF

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Publication number
FR3029268B1
FR3029268B1 FR1561445A FR1561445A FR3029268B1 FR 3029268 B1 FR3029268 B1 FR 3029268B1 FR 1561445 A FR1561445 A FR 1561445A FR 1561445 A FR1561445 A FR 1561445A FR 3029268 B1 FR3029268 B1 FR 3029268B1
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France
Prior art keywords
signal
circuit
illumination
determination signal
lamp
Prior art date
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Active
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FR1561445A
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English (en)
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FR3029268A1 (fr
Inventor
Tomoyuki Ichikawa
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
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Filing date
Publication date
Application filed by Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Publication of FR3029268A1 publication Critical patent/FR3029268A1/fr
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Publication of FR3029268B1 publication Critical patent/FR3029268B1/fr
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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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light

Landscapes

  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Devices (AREA)

Abstract

Un circuit d'éclairage (400) pour commander une source de lumière à semiconducteur (302) utilise un signal impulsionnel d'instruction (S1) ayant un premier et un second rapport cyclique pour ordonner l'allumage dans un premier ou un second mode (φON1,φON2), et un signal à niveau constant pour ordonner l'extinction. Il comporte un circuit de détermination d'entrée (402, 402a, 402b, 402c) qui, si le signal d'instruction est un signal impulsionnel, génère un signal de détermination (S2) un circuit de détermination de mode (404) qui génère un signal de détermination de mode de rapport cyclique (S5), et un circuit de commande (410) qui délivre à la source de lumière (302) un courant de commande (ILD) si le signal de détermination d'éclairage (S2) est validé et ne délivre pas le courant de commande (ILD) si le signal de détermination d'éclairage (S2) est annulé.
FR1561445A 2014-11-27 2015-11-27 Circuit d'eclairage et lampe pour vehicule Active FR3029268B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014240409A JP6425983B2 (ja) 2014-11-27 2014-11-27 点灯回路、車両用灯具
JP2014240409 2014-11-27

Publications (2)

Publication Number Publication Date
FR3029268A1 FR3029268A1 (fr) 2016-06-03
FR3029268B1 true FR3029268B1 (fr) 2019-01-25

Family

ID=55968247

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1561445A Active FR3029268B1 (fr) 2014-11-27 2015-11-27 Circuit d'eclairage et lampe pour vehicule

Country Status (3)

Country Link
JP (1) JP6425983B2 (fr)
DE (1) DE102015223593A1 (fr)
FR (1) FR3029268B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6782176B2 (ja) * 2017-01-23 2020-11-11 株式会社小糸製作所 点灯回路および車両用灯具

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133765A (en) * 1978-04-10 1979-10-17 Hitachi Ltd Circuit for lighting lamps
JPS61224596A (ja) * 1985-03-28 1986-10-06 Nissan Motor Co Ltd 多重伝送の異常処理装置
JP3991854B2 (ja) * 2002-12-10 2007-10-17 株式会社デンソー 車両用発電制御装置
JP4124445B2 (ja) 2003-02-03 2008-07-23 株式会社小糸製作所 光源及び車両用前照灯
JP3949119B2 (ja) * 2004-03-29 2007-07-25 ローム株式会社 レーザ素子駆動装置
JP4855793B2 (ja) * 2006-02-06 2012-01-18 株式会社リコー スイッチングレギュレータ
CN102333677B (zh) * 2009-02-25 2014-12-24 三菱电机株式会社 前照灯光源点亮装置、及通信装置

Also Published As

Publication number Publication date
JP6425983B2 (ja) 2018-11-21
JP2016103368A (ja) 2016-06-02
DE102015223593A1 (de) 2016-06-02
FR3029268A1 (fr) 2016-06-03

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