CN105981475B - 具有短路检测电路的电致发光设备 - Google Patents

具有短路检测电路的电致发光设备 Download PDF

Info

Publication number
CN105981475B
CN105981475B CN201580006291.8A CN201580006291A CN105981475B CN 105981475 B CN105981475 B CN 105981475B CN 201580006291 A CN201580006291 A CN 201580006291A CN 105981475 B CN105981475 B CN 105981475B
Authority
CN
China
Prior art keywords
emitting element
light emitting
short circuit
voltage
electroluminescent device
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
CN201580006291.8A
Other languages
English (en)
Chinese (zh)
Other versions
CN105981475A (zh
Inventor
D.亨特
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.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Koninklijke Philips NV
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 Koninklijke Philips NV filed Critical Koninklijke Philips NV
Publication of CN105981475A publication Critical patent/CN105981475A/zh
Application granted granted Critical
Publication of CN105981475B publication Critical patent/CN105981475B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor 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]
    • H05B45/60—Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
    • 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
    • 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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor devices
    • G01R31/2607—Circuits therefor
    • G01R31/2632—Circuits therefor for testing diodes
    • G01R31/2635—Testing light-emitting diodes, laser diodes or photodiodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
CN201580006291.8A 2014-01-28 2015-01-13 具有短路检测电路的电致发光设备 Active CN105981475B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP14152787 2014-01-28
EP14152787.9 2014-01-28
PCT/EP2015/050437 WO2015113805A1 (en) 2014-01-28 2015-01-13 Electroluminescent device with short detection circuit

Publications (2)

Publication Number Publication Date
CN105981475A CN105981475A (zh) 2016-09-28
CN105981475B true CN105981475B (zh) 2018-08-28

Family

ID=50064409

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201580006291.8A Active CN105981475B (zh) 2014-01-28 2015-01-13 具有短路检测电路的电致发光设备

Country Status (7)

Country Link
US (1) US9713224B2 (enExample)
EP (1) EP3100062B1 (enExample)
JP (1) JP6220981B2 (enExample)
CN (1) CN105981475B (enExample)
BR (1) BR112016017176B1 (enExample)
RU (1) RU2668946C2 (enExample)
WO (1) WO2015113805A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106448564B (zh) 2016-12-20 2019-06-25 京东方科技集团股份有限公司 一种oled像素电路及其驱动方法、显示装置
DE102021100854A1 (de) 2021-01-18 2022-07-21 HELLA GmbH & Co. KGaA Steuer- und/oder Regelungsmittel, Schaltungsanordnung und Verfahren zur Ansteuerung von Leuchtdioden in einem Leuchtdiodenfeld

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1691116A (zh) * 2004-04-22 2005-11-02 精工爱普生株式会社 电路、其驱动方法、电光学装置以及电子机器
US20080231198A1 (en) * 2007-03-23 2008-09-25 Zarr Richard F Circuit for driving and monitoring an LED

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07140490A (ja) 1993-11-16 1995-06-02 Hitachi Electron Eng Co Ltd Ｔｆｔ基板の短絡検査方法
RU2130617C1 (ru) * 1995-02-14 1999-05-20 Акционерное общество открытого типа "Автоэлектроарматура" Устройство для контроля светодиодов
DE19734750C2 (de) 1997-08-12 2003-04-30 Reitter & Schefenacker Gmbh Heckleuchte von Kraftfahrzeugen
JP2005003606A (ja) * 2003-06-13 2005-01-06 Mecc Co Ltd 表示パネルの検査装置
JP2006210219A (ja) 2005-01-31 2006-08-10 Koito Mfg Co Ltd 車両用灯具の点灯制御回路
US7800876B2 (en) * 2006-01-09 2010-09-21 Microsemi Corp. - Analog Mixed Signal Group Ltd. Fault detection mechanism for LED backlighting
TWI299405B (en) * 2006-03-02 2008-08-01 Macroblock Inc Method and apparatus for silent current detection
AT504949B1 (de) * 2007-02-20 2008-11-15 Zizala Lichtsysteme Gmbh Schaltungsanordnung zur erkennung eines kurzschlusses von leuchtdioden
JP2008251276A (ja) 2007-03-29 2008-10-16 Stanley Electric Co Ltd 発光ダイオード回路の故障検知装置
JP2009038247A (ja) 2007-08-02 2009-02-19 Mitsubishi Electric Corp Ｌｅｄ点灯装置
JP5317325B2 (ja) * 2008-03-26 2013-10-16 パナソニック株式会社 発光装置
US8054603B2 (en) * 2008-10-08 2011-11-08 Himax Analogic, Inc. Power converter, short detection circuit thereof, and method for detecting short
JP2010129612A (ja) 2008-11-25 2010-06-10 Panasonic Electric Works Co Ltd 点灯装置
JPWO2011040512A1 (ja) * 2009-10-02 2013-02-28 レシップホールディングス株式会社 蛍光灯駆動装置及び蛍光灯駆動装置の保護回路
JP5901966B2 (ja) * 2011-01-13 2016-04-13 ローム株式会社 Ｌｅｄショート検出回路、ｌｅｄ駆動装置、ｌｅｄ照明装置、車両
JP2013037763A (ja) 2011-06-29 2013-02-21 Arco Giken:Kk Ｌｅｄ照明回路及びｌｅｄ照明装置
US9192014B2 (en) 2011-07-19 2015-11-17 Nxp B.V. LED short circuit protection
US8773038B2 (en) * 2011-08-26 2014-07-08 Infineon Technologies Ag Driver circuit for efficiently driving a large number of LEDs
KR101876561B1 (ko) * 2011-08-26 2018-07-10 엘지디스플레이 주식회사 액정표시장치와 이의 구동방법
JP5288082B1 (ja) 2011-11-28 2013-09-11 コニカミノルタ株式会社 発光モジュール
US8933647B2 (en) * 2012-07-27 2015-01-13 Infineon Technologies Ag LED controller with current-ripple control
TWI513363B (zh) * 2012-12-07 2015-12-11 Upi Semiconductor Corp 發光二極體的短路保護電路及其短路保護方法以及應用其之發光二極體驅動裝置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1691116A (zh) * 2004-04-22 2005-11-02 精工爱普生株式会社 电路、其驱动方法、电光学装置以及电子机器
US20080231198A1 (en) * 2007-03-23 2008-09-25 Zarr Richard F Circuit for driving and monitoring an LED

Also Published As

Publication number Publication date
WO2015113805A1 (en) 2015-08-06
JP2017509105A (ja) 2017-03-30
EP3100062B1 (en) 2017-09-13
RU2016134837A (ru) 2018-03-07
BR112016017176A2 (enExample) 2017-08-08
US9713224B2 (en) 2017-07-18
RU2016134837A3 (enExample) 2018-08-02
BR112016017176B1 (pt) 2022-05-24
US20160353546A1 (en) 2016-12-01
RU2668946C2 (ru) 2018-10-05
CN105981475A (zh) 2016-09-28
EP3100062A1 (en) 2016-12-07
JP6220981B2 (ja) 2017-10-25

Similar Documents

Publication Publication Date Title
CN104115559B (zh) 用于驱动负载的驱动器装置和驱动方法
CN104427711B (zh) 发光二极管照明系统、发光二极管控制器及控制方法
US10178717B2 (en) Lamp-control circuit for lamp array emitting constant light output
KR102453820B1 (ko) 발광소자 구동회로 및 조명장치
EP2430880B1 (en) Driver for analysing condition of, and supplying healing voltage to, an oled device
US9351366B1 (en) Isolation dimmer circuit structure
US8138679B2 (en) Organic electroluminescent light emitting device for restoring normal operation after low-voltage errors
US9980334B2 (en) LED lighting system
CN104041184B (zh) 用于补偿负载特别是led单元的电流的影响的电气设备和方法、以及用于负载特别是led单元的驱动器设备
US9253831B2 (en) Driver device and driving method for driving a load, in particular an led unit
TWI458216B (zh) 具有箝位裝置之發光二極體照明系統
CN104206013A (zh) Led照明系统
TWI613932B (zh) 驅動模組、及具有此驅動模組的光源系統
CN105981475B (zh) 具有短路检测电路的电致发光设备
US20120194076A1 (en) Lighting control device
TWI584673B (zh) 發光元件驅動電路
CN115379616B (zh) 并联定序的发光二极管灯串
US20180070414A1 (en) Light unit and method for controlling a light unit
JP2016201276A (ja) 点灯回路、照明器具および照明システム
TWI547203B (zh) 發光元件驅動電路
CN103841720B (zh) 发光二极管驱动装置及其运作方法
KR102025669B1 (ko) 유기 발광 소자 구동 장치 및 구동 방법
JP6396793B2 (ja) スイッチング電源回路
US20130140991A1 (en) Direction indication lamp control device, direction indication device and wire disconnection detection method of the direction indication device
US20110260642A1 (en) Inductive current-sharing control circuit for led lamp string

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20181127

Address after: Beijing City, Haidian District Qinghe Street No. 68 Huarun colorful city shopping center two 9 floor room 01

Patentee after: BEIJING XIAOMI MOBILE SOFTWARE Co.,Ltd.

Address before: Holland Ian Deho Finn

Patentee before: Royal Philips Co.,Ltd.

TR01 Transfer of patent right