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

Info

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
Authority
CN
China
Prior art keywords
light source
current
electric current
switch
unit
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
Other languages
English (en)
Chinese (zh)
Other versions
CN105472837A (zh
Inventor
米冈勋
浅村吉范
山本善洪
井上治久
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
Original Assignee
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
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

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
    • H05B45/52—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 (cg-RX-API-DMAC7.html)
JP (1) JP2016071981A (cg-RX-API-DMAC7.html)
CN (1) CN105472837B (cg-RX-API-DMAC7.html)
RU (1) RU2614037C1 (cg-RX-API-DMAC7.html)

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
US10093232B2 (en) 2015-09-16 2018-10-09 Truck-Lite Co., Llc Telematics road ready system
US10388161B2 (en) 2015-09-16 2019-08-20 Truck-Lite Co., Llc Telematics road ready system with user interface
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
US11996673B2 (en) * 2018-11-27 2024-05-28 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 (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Family Cites Families (14)

* 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
BRPI0820090A2 (pt) * 2007-12-07 2015-06-30 Koninkl Philips Electronics Nv Lâmpada de diodo emissor de luz, e, método e sistema de administração de potência de lâmpada de diodo emissor de luz
US8334662B2 (en) * 2009-09-11 2012-12-18 Iwatt Inc. Adaptive switch mode LED driver
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
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
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
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
RU2614037C1 (ru) 2017-03-22
US20160095194A1 (en) 2016-03-31
CN105472837A (zh) 2016-04-06
US9370082B2 (en) 2016-06-14

Similar Documents

Publication Publication Date Title
CN105472837B (zh) 光源控制装置和光源控制方法
CN104582129B (zh) 光源控制装置以及光源控制方法
JP6066613B2 (ja) 光源制御装置および光源制御方法
CN102548119A (zh) 半导体光源装置、半导体光源控制方法及投影装置
JP5576892B2 (ja) Ｌｅｄ点灯および断線検出制御装置
JP2006210219A (ja) 車両用灯具の点灯制御回路
US11381687B2 (en) Information processing apparatus and control method therefor
JP2008198915A (ja) 発光装置
TWI800166B (zh) 具短路偵測功能的掃描式顯示器及其資料裝置
CN105307323A (zh) 光源控制装置和光源控制方法
JP2015020460A (ja) 車載照明灯の制御装置
US10613605B2 (en) Service device, power supply control method, program, external power supply device, and server system
CN104112414A (zh) 投影型视频显示装置
TWI804112B (zh) 具短路偵測功能的掃描式顯示器及其資料裝置
KR20110109518A (ko) 분산 제어용 제어 모듈을 이용한 와이어링 하니스의 부하 감지 시스템
JP6594590B2 (ja) 車載用照明装置
JP6352528B2 (ja) Ｌｅｄ点灯装置およびｌｅｄ点灯方法
JP2012204176A (ja) Ｌｅｄ光源ユニットチェッカ
JP7106966B2 (ja) 車両用灯具
JP5788242B2 (ja) Ｌｅｄ点灯装置及びこれを備えた表示装置
JP6141463B2 (ja) 照明器具
CN223566286U (zh) Led显示屏
CN115265832B (zh) 温度检测电路、温度检测方法和灯具
JP7675832B2 (ja) 自動車投光器用短絡エラー検出型照明装置
JP2011192684A (ja) Ｌｅｄ装置及び照明器具

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180629

Termination date: 20210925