CN105472837B - 光源控制装置和光源控制方法 - Google Patents

光源控制装置和光源控制方法 Download PDF

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Publication number
CN105472837B
CN105472837B CN201510623454.9A CN201510623454A CN105472837B CN 105472837 B CN105472837 B CN 105472837B CN 201510623454 A CN201510623454 A CN 201510623454A CN 105472837 B CN105472837 B CN 105472837B
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CN
China
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.)
Expired - Fee Related
Application number
CN201510623454.9A
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English (en)
Chinese (zh)
Other versions
CN105472837A (zh
Inventor
米冈勋
浅村吉范
山本善洪
井上治久
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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.)
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Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN105472837A publication Critical patent/CN105472837A/zh
Application granted granted Critical
Publication of CN105472837B publication Critical patent/CN105472837B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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)
CN201510623454.9A 2014-09-29 2015-09-25 光源控制装置和光源控制方法 Expired - Fee Related CN105472837B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-197844 2014-09-29
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
CN105472837A CN105472837A (zh) 2016-04-06
CN105472837B true CN105472837B (zh) 2018-06-29

Family

ID=55586027

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510623454.9A Expired - Fee Related CN105472837B (zh) 2014-09-29 2015-09-25 光源控制装置和光源控制方法

Country Status (4)

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

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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

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CN102497694A (zh) * 2011-11-14 2012-06-13 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
CN102510636A (zh) * 2011-11-15 2012-06-20 韦挽澜 一种驱动白光led的电流检测ic
CN102612861A (zh) * 2009-11-13 2012-07-25 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
CN103415111A (zh) * 2013-07-30 2013-11-27 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
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

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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
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JP5527108B2 (ja) * 2010-08-26 2014-06-18 セイコーエプソン株式会社 光源制御装置及びプロジェクター
JP5942314B2 (ja) * 2011-02-22 2016-06-29 パナソニックＩｐマネジメント株式会社 点灯装置および、これを用いた照明器具
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
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JP6066613B2 (ja) * 2012-08-08 2017-01-25 三菱電機株式会社 光源制御装置および光源制御方法
EP2739119B1 (en) * 2012-11-30 2015-08-19 Dialog Semiconductor GmbH Short circuit detection for lighting circuits

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CN102612861A (zh) * 2009-11-13 2012-07-25 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
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
CN102497694A (zh) * 2011-11-14 2012-06-13 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
CN102510636A (zh) * 2011-11-15 2012-06-20 韦挽澜 一种驱动白光led的电流检测ic
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
CN103415111A (zh) * 2013-07-30 2013-11-27 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

Also Published As

Publication number Publication date
JP2016071981A (ja) 2016-05-09
US9370082B2 (en) 2016-06-14
US20160095194A1 (en) 2016-03-31
CN105472837A (zh) 2016-04-06
RU2614037C1 (ru) 2017-03-22

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Granted publication date: 20180629

Termination date: 20210925