JP2016071981A - 光源制御装置および光源制御方法 - Google Patents

光源制御装置および光源制御方法 Download PDF

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Publication number
JP2016071981A
JP2016071981A JP2014197844A JP2014197844A JP2016071981A JP 2016071981 A JP2016071981 A JP 2016071981A JP 2014197844 A JP2014197844 A JP 2014197844A JP 2014197844 A JP2014197844 A JP 2014197844A JP 2016071981 A JP2016071981 A JP 2016071981A
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JP
Japan
Prior art keywords
light source
current
unit
switch
light sources
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.)
Pending
Application number
JP2014197844A
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English (en)
Japanese (ja)
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JP2016071981A5 (https=
Inventor
勲 米岡
Isao Yoneoka
勲 米岡
浅村　吉範
Yoshinori Asamura
吉範 浅村
善洪 山本
Yoshihiro Yamamoto
善洪 山本
治久 井上
Haruhisa Inoue
治久 井上
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.)
Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2014197844A priority Critical patent/JP2016071981A/ja
Priority to US14/834,100 priority patent/US9370082B2/en
Priority to RU2015140385A priority patent/RU2614037C1/ru
Priority to CN201510623454.9A priority patent/CN105472837B/zh
Publication of JP2016071981A publication Critical patent/JP2016071981A/ja
Publication of JP2016071981A5 publication Critical patent/JP2016071981A5/ja
Pending legal-status Critical Current

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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]
    • H05B45/50—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
    • 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
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • 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
    • 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)
JP2014197844A 2014-09-29 2014-09-29 光源制御装置および光源制御方法 Pending JP2016071981A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2014197844A JP2016071981A (ja) 2014-09-29 2014-09-29 光源制御装置および光源制御方法
US14/834,100 US9370082B2 (en) 2014-09-29 2015-08-24 Light source control apparatus and light source control method
RU2015140385A RU2614037C1 (ru) 2014-09-29 2015-09-22 Устройство управления источниками света и способ управления источниками света
CN201510623454.9A CN105472837B (zh) 2014-09-29 2015-09-25 光源控制装置和光源控制方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014197844A JP2016071981A (ja) 2014-09-29 2014-09-29 光源制御装置および光源制御方法

Publications (2)

Publication Number Publication Date
JP2016071981A true JP2016071981A (ja) 2016-05-09
JP2016071981A5 JP2016071981A5 (https=) 2017-08-17

Family

ID=55586027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014197844A Pending JP2016071981A (ja) 2014-09-29 2014-09-29 光源制御装置および光源制御方法

Country Status (4)

Country Link
US (1) US9370082B2 (https=)
JP (1) JP2016071981A (https=)
CN (1) CN105472837B (https=)
RU (1) RU2614037C1 (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI583258B (zh) * 2015-01-30 2017-05-11 榮創能源科技股份有限公司 故障檢測設備及方法
US10388161B2 (en) 2015-09-16 2019-08-20 Truck-Lite Co., Llc Telematics road ready system with user interface
US10093232B2 (en) 2015-09-16 2018-10-09 Truck-Lite Co., Llc Telematics road ready system
US20180014374A1 (en) * 2016-07-08 2018-01-11 Hubbell Incorporated Horticultural light
US20190268675A1 (en) 2017-03-15 2019-08-29 Scott Troutman Telematics Road Ready System including a Bridge Integrator Unit
CN108877673B (zh) * 2018-07-27 2020-12-25 京东方科技集团股份有限公司 控制显示面板驱动电流的方法及装置、电子设备、存储介质
JP2020088020A (ja) * 2018-11-16 2020-06-04 ソニーセミコンダクタソリューションズ株式会社 検出回路、駆動回路および発光装置
EP3890125B1 (en) * 2018-11-27 2023-11-29 Sony Semiconductor Solutions Corporation Drive device and light-emitting device
US12144083B2 (en) * 2022-12-22 2024-11-12 Valeo Vision Multi-branch light system with current balancing and failure indication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012049317A (ja) * 2010-08-26 2012-03-08 Seiko Epson Corp 光源制御装置及びプロジェクター
JP2012174518A (ja) * 2011-02-22 2012-09-10 Panasonic Corp 点灯装置および、これを用いた照明器具
JP2014035856A (ja) * 2012-08-08 2014-02-24 Mitsubishi Electric Corp 光源制御装置および光源制御方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4236894B2 (ja) * 2002-10-08 2009-03-11 株式会社小糸製作所 点灯回路
JP4722649B2 (ja) 2005-09-27 2011-07-13 日立アプライアンス株式会社 Ｌｅｄ光源装置
JP2007096113A (ja) 2005-09-29 2007-04-12 Hitachi Lighting Ltd Ｌｅｄ光源装置
KR20100096231A (ko) * 2007-12-07 2010-09-01 코닌클리즈케 필립스 일렉트로닉스 엔.브이. Ｌｅｄ 램프 전력 관리 시스템 및 방법
US8334662B2 (en) * 2009-09-11 2012-12-18 Iwatt Inc. Adaptive switch mode LED driver
CN102612861B (zh) * 2009-11-13 2016-01-20 日亚化学工业株式会社 发光二极管驱动装置及发光二极管的点亮控制方法
CN102348310B (zh) * 2010-08-03 2013-08-14 英飞特电子（杭州）股份有限公司 一种多路led负载供电电路
CN201821553U (zh) * 2010-09-19 2011-05-04 英飞特电子（杭州）有限公司 一种发光二极管恒流驱动电路的开路保护电路
KR101453053B1 (ko) * 2011-04-20 2014-10-23 주식회사 이엠퍼스트 엘이디 소자를 보호하는 엘이디 조명 장치 및 그 조명 장치의 제어 방법
TWM418292U (en) * 2011-05-18 2011-12-11 Richtek Technology Corp Light emitting device open/short detection circuit
CN102497694B (zh) * 2011-11-14 2014-08-13 哈尔滨工业大学 基于阵列开路数目观测的数字化led驱动电路
CN102510636B (zh) * 2011-11-15 2013-11-13 韦挽澜 一种驱动白光led的电流检测ic
US8896214B2 (en) * 2011-12-19 2014-11-25 Monolithic Power Systems, Inc. LED driving system for driving multi-string LEDs and the method thereof
US8896319B2 (en) * 2012-02-24 2014-11-25 Richtek Technology Corporation Light emitting device control circuit and short detection circuit thereof
CN203352858U (zh) * 2012-11-09 2013-12-18 刘芬 Led均亮控制电路及恒压驱动led照明系统
EP2739119B1 (en) * 2012-11-30 2015-08-19 Dialog Semiconductor GmbH Short circuit detection for lighting circuits
CN103415111B (zh) * 2013-07-30 2016-06-22 浙江生辉照明有限公司 Led照明装置的驱动电路及驱动方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012049317A (ja) * 2010-08-26 2012-03-08 Seiko Epson Corp 光源制御装置及びプロジェクター
JP2012174518A (ja) * 2011-02-22 2012-09-10 Panasonic Corp 点灯装置および、これを用いた照明器具
JP2014035856A (ja) * 2012-08-08 2014-02-24 Mitsubishi Electric Corp 光源制御装置および光源制御方法

Also Published As

Publication number Publication date
CN105472837B (zh) 2018-06-29
US9370082B2 (en) 2016-06-14
US20160095194A1 (en) 2016-03-31
CN105472837A (zh) 2016-04-06
RU2614037C1 (ru) 2017-03-22

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