JP6278238B2 - 発光負荷の駆動装置及び車両用発光装置 - Google Patents

発光負荷の駆動装置及び車両用発光装置 Download PDF

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Publication number
JP6278238B2
JP6278238B2 JP2014046174A JP2014046174A JP6278238B2 JP 6278238 B2 JP6278238 B2 JP 6278238B2 JP 2014046174 A JP2014046174 A JP 2014046174A JP 2014046174 A JP2014046174 A JP 2014046174A JP 6278238 B2 JP6278238 B2 JP 6278238B2
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Japan
Prior art keywords
switching element
light emitting
load
emitting load
turn
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.)
Active
Application number
JP2014046174A
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English (en)
Japanese (ja)
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JP2015170556A (ja
Inventor
加藤　淳一
淳一 加藤
康之 松永
康之 松永
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.)
Sanken Electric Co Ltd
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Sanken Electric 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.)
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Publication date
Application filed by Sanken Electric Co Ltd filed Critical Sanken Electric Co Ltd
Priority to JP2014046174A priority Critical patent/JP6278238B2/ja
Priority to EP15157687.3A priority patent/EP2919559B1/de
Publication of JP2015170556A publication Critical patent/JP2015170556A/ja
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Publication of JP6278238B2 publication Critical patent/JP6278238B2/ja
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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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
    • 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
    • H05B45/54—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a series 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
    • H05B47/10—Controlling the light source

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Electronic Switches (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Led Devices (AREA)
JP2014046174A 2014-03-10 2014-03-10 発光負荷の駆動装置及び車両用発光装置 Active JP6278238B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014046174A JP6278238B2 (ja) 2014-03-10 2014-03-10 発光負荷の駆動装置及び車両用発光装置
EP15157687.3A EP2919559B1 (de) 2014-03-10 2015-03-05 Ansteuerungsvorrichtung einer lichtemittierenden last und lichtemittierende vorrichtung für ein fahrzeug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014046174A JP6278238B2 (ja) 2014-03-10 2014-03-10 発光負荷の駆動装置及び車両用発光装置

Publications (2)

Publication Number Publication Date
JP2015170556A JP2015170556A (ja) 2015-09-28
JP6278238B2 true JP6278238B2 (ja) 2018-02-14

Family

ID=53008254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014046174A Active JP6278238B2 (ja) 2014-03-10 2014-03-10 発光負荷の駆動装置及び車両用発光装置

Country Status (2)

Country Link
EP (1) EP2919559B1 (de)
JP (1) JP6278238B2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9769898B1 (en) * 2016-12-08 2017-09-19 Nxp B.V. Adjusted pulse width modulation (PWM) curve calculations for improved accuracy

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05328795A (ja) * 1992-05-26 1993-12-10 Mitsubishi Electric Corp 出力バッファ回路
JP4573579B2 (ja) * 2004-06-18 2010-11-04 三洋電機株式会社 Ｌｅｄ照明装置
JP5667361B2 (ja) * 2006-09-20 2015-02-12 コーニンクレッカ フィリップス エヌ ヴェ 発光素子制御システム及び該システムを有する照明システム
US8493000B2 (en) * 2010-01-04 2013-07-23 Cooledge Lighting Inc. Method and system for driving light emitting elements
JP6134312B2 (ja) * 2012-04-25 2017-05-24 株式会社小糸製作所 ダウンコンバータの制御回路および車両用灯具
DE102013100663A1 (de) * 2013-01-23 2014-07-24 Osram Opto Semiconductors Gmbh Anordnung und Verfahren zum Betreiben einer Anordnung
JP5422068B2 (ja) 2013-02-15 2014-02-19 三菱電機株式会社 Ｌｅｄ点灯装置および車両用前照灯

Also Published As

Publication number Publication date
EP2919559B1 (de) 2019-01-16
JP2015170556A (ja) 2015-09-28
EP2919559A3 (de) 2015-10-14
EP2919559A2 (de) 2015-09-16

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