EP2427033A3 - Circuit de dérivation pour diodes électroluminescentes couplées en série et procédés de fonctionnement associés - Google Patents

Circuit de dérivation pour diodes électroluminescentes couplées en série et procédés de fonctionnement associés Download PDF

Info

Publication number: EP2427033A3
Authority: EP; European Patent Office
Prior art keywords: led; associated methods; light emitting; emitting diodes; coupled light
Prior art date: 2010-09-07
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.): Granted

Application number

EP11180344A

Other languages

German (de)

English (en)

Other versions

EP2427033B1 (fr

EP2427033A2 (fr

Inventor

Eric Yang

Kaiwei Yao

Frank Xi

Zhengwei Zhang

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.)

Monolithic Power Systems Inc

Original Assignee

Monolithic Power Systems Inc

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.)

2010-09-07

Filing date

2011-09-07

Publication date

2012-05-23

2010-09-15 Priority claimed from CN2010102859577A external-priority patent/CN101969720B/zh

2011-03-18 Priority claimed from US13/051,437 external-priority patent/US8354799B2/en

2011-09-07 Application filed by Monolithic Power Systems Inc filed Critical Monolithic Power Systems Inc

2012-03-07 Publication of EP2427033A2 publication Critical patent/EP2427033A2/fr

2012-05-23 Publication of EP2427033A3 publication Critical patent/EP2427033A3/fr

2014-11-12 Application granted granted Critical

2014-11-12 Publication of EP2427033B1 publication Critical patent/EP2427033B1/fr

Status Active legal-status Critical Current

2031-09-07 Anticipated expiration legal-status Critical

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
- H05B45/58—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
- 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

Landscapes

Led Devices (AREA)
Circuit Arrangement For Electric Light Sources In General (AREA)
Electronic Switches (AREA)

EP11180344.1A 2010-09-07 2011-09-07 Circuit de dérivation pour diodes électroluminescentes couplées en série et procédés de fonctionnement associés Active EP2427033B1 (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US38064610P	2010-09-07	2010-09-07
CN2010102859577A CN101969720B (zh)	2010-09-15	2010-09-15	Led旁路控制电路和控制方法
US13/051,437 US8354799B2 (en)	2010-09-07	2011-03-18	Bypass circuitry for serially coupled light emitting diodes and associated methods of operation

Publications (3)

Publication Number	Publication Date
EP2427033A2 EP2427033A2 (fr)	2012-03-07
EP2427033A3 true EP2427033A3 (fr)	2012-05-23
EP2427033B1 EP2427033B1 (fr)	2014-11-12

Family

ID=44534168

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP11180344.1A Active EP2427033B1 (fr)	2010-09-07	2011-09-07	Circuit de dérivation pour diodes électroluminescentes couplées en série et procédés de fonctionnement associés

Country Status (1)

Country	Link
EP (1)	EP2427033B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP6145927B2 (ja) *	2012-06-01	2017-06-14	パナソニックＩｐマネジメント株式会社	点灯装置および車両用前照灯
JP6030922B2 (ja) *	2012-06-11	2016-11-24	株式会社小糸製作所	光源制御装置
WO2019224136A1 (fr) *	2018-05-21	2019-11-28	Scandinova Systems Ab	Redresseur de sortie et agencement comprenant un redresseur de sortie
DE102019103404B3 (de) *	2019-02-12	2020-02-27	Semikron Elektronik Gmbh & Co. Kg	Schaltungseinrichtung mit einem Stromrichter und einer Kodensatorentladungseinrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20090085489A1 (en) *	2007-09-28	2009-04-02	Chunghwa Picture Tubes, Ltd.	Circuit and method for driving and controling light source
WO2009138907A2 (fr) *	2008-05-13	2009-11-19	Nxp B.V.	Détection de pannes de dispositifs d'éclairage
WO2010034739A1 (fr) *	2008-09-24	2010-04-01	Hella Kgaa Hueck & Co.	Procédé pour faire fonctionner un montage en série d’au moins deux led

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7800876B2 (en) *	2006-01-09	2010-09-21	Microsemi Corp. - Analog Mixed Signal Group Ltd.	Fault detection mechanism for LED backlighting

2011
- 2011-09-07 EP EP11180344.1A patent/EP2427033B1/fr active Active

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20090085489A1 (en) *	2007-09-28	2009-04-02	Chunghwa Picture Tubes, Ltd.	Circuit and method for driving and controling light source
WO2009138907A2 (fr) *	2008-05-13	2009-11-19	Nxp B.V.	Détection de pannes de dispositifs d'éclairage
WO2010034739A1 (fr) *	2008-09-24	2010-04-01	Hella Kgaa Hueck & Co.	Procédé pour faire fonctionner un montage en série d’au moins deux led

Also Published As

Publication number	Publication date
EP2427033B1 (fr)	2014-11-12
EP2427033A2 (fr)	2012-03-07

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