EP2194760A1 - Dispositif doté de plusieurs voyants électriques reliés en série - Google Patents

Dispositif doté de plusieurs voyants électriques reliés en série Download PDF

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Publication number
EP2194760A1
EP2194760A1 EP08021297A EP08021297A EP2194760A1 EP 2194760 A1 EP2194760 A1 EP 2194760A1 EP 08021297 A EP08021297 A EP 08021297A EP 08021297 A EP08021297 A EP 08021297A EP 2194760 A1 EP2194760 A1 EP 2194760A1
Authority
EP
European Patent Office
Prior art keywords
current
bypass
series
current source
lighting means
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.)
Ceased
Application number
EP08021297A
Other languages
German (de)
English (en)
Inventor
Andreas Singer
Jochen Suck
Martin Scholz
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.)
Delphi International Operations Luxembourg SARL
Original Assignee
Delphi Technologies 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.)
Filing date
Publication date
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to EP08021297A priority Critical patent/EP2194760A1/fr
Priority to EP10015239A priority patent/EP2364059A3/fr
Publication of EP2194760A1 publication Critical patent/EP2194760A1/fr
Ceased 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]
    • H05B45/40—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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/38—Switched mode power supply [SMPS] using boost 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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/54—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a series array of LEDs

Definitions

  • the switch itself constitutes an additional resistor arranged in the bypass current path, which causes an additional voltage drop when the bypass current path is closed, while no power is consumed when the bypass current path is open.
  • the switch performs a dual function, namely the switching function and at the same time the current limiting function.
  • This variant of the current-limiting device thus basically comes without additional components, such as e.g. Resistors or constant current source, off.
  • the device according to the invention When using the device according to the invention in a headlight of a motor vehicle different light intensities can be realized in this way, for example, according to a use of the headlamp as a low beam or parking light.
EP08021297A 2008-12-08 2008-12-08 Dispositif doté de plusieurs voyants électriques reliés en série Ceased EP2194760A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08021297A EP2194760A1 (fr) 2008-12-08 2008-12-08 Dispositif doté de plusieurs voyants électriques reliés en série
EP10015239A EP2364059A3 (fr) 2008-12-08 2008-12-08 Dispositif doté de plusieurs voyants électriques reliés en série

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08021297A EP2194760A1 (fr) 2008-12-08 2008-12-08 Dispositif doté de plusieurs voyants électriques reliés en série

Publications (1)

Publication Number Publication Date
EP2194760A1 true EP2194760A1 (fr) 2010-06-09

Family

ID=40689294

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08021297A Ceased EP2194760A1 (fr) 2008-12-08 2008-12-08 Dispositif doté de plusieurs voyants électriques reliés en série
EP10015239A Withdrawn EP2364059A3 (fr) 2008-12-08 2008-12-08 Dispositif doté de plusieurs voyants électriques reliés en série

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10015239A Withdrawn EP2364059A3 (fr) 2008-12-08 2008-12-08 Dispositif doté de plusieurs voyants électriques reliés en série

Country Status (1)

Country Link
EP (2) EP2194760A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3182799A1 (fr) * 2015-12-18 2017-06-21 odelo GmbH Procede de fonctionnement d'un moyen d'eclairage de lampe de vehicule comprenant plusieurs sources lumineuses semi-conductrices et destine a executer le procede de moyen d'eclairage adapte

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1006506A1 (fr) * 1998-12-03 2000-06-07 Hewlett-Packard Company Affichage optique pour véhicule
DE10103611A1 (de) * 2001-01-26 2002-08-01 Insta Elektro Gmbh Schaltungsanordnung zum Betreiben von mehreren Leuchtmitteln
EP1322139A1 (fr) * 2001-12-19 2003-06-25 Toyoda Gosei Co., Ltd. Lampe à diodes électroluminescentes pour véhicules
EP1589519A2 (fr) 2004-04-20 2005-10-26 Sony Corporation Dispositif d'attaque à courant constant, source lumineuse pour rétroéclairage, et dispositif d'affichage couleur à cristaux liquides
US7012379B1 (en) * 2003-03-27 2006-03-14 Ilight Technologies, Inc. Cuttable illumination device
US20060197722A1 (en) * 2003-04-16 2006-09-07 Chiaki Nakajima Display led drive circuit
WO2007035883A2 (fr) 2005-09-20 2007-03-29 California Micro Devices Corporation Circuit d'attaque de chaines paralleles de del connectees en serie
US20070108843A1 (en) * 2005-11-17 2007-05-17 Preston Nigel A Series connected power supply for semiconductor-based vehicle lighting systems
WO2007069200A1 (fr) 2005-12-13 2007-06-21 Koninklijke Philips Electronics N.V. Dispositif d'eclairage a diodes electroluminescentes
US20070145914A1 (en) 2005-12-22 2007-06-28 Lg.Philips Lcd Co., Ltd. Device for driving light emitting diode
US20070159736A1 (en) 2006-01-12 2007-07-12 Denso Corporation Led-based lamp apparatus
US20070159750A1 (en) * 2006-01-09 2007-07-12 Powerdsine, Ltd. Fault Detection Mechanism for LED Backlighting
US20070257623A1 (en) * 2006-03-27 2007-11-08 Texas Instruments, Incorporated Highly efficient series string led driver with individual led control
DE102006031679A1 (de) * 2006-07-08 2008-01-10 Hella Kgaa Hueck & Co. Schaltungsanordnung zur elektrischen Ansteuerung eines Kraftfahrzeug-Scheinwerfers
US20080068192A1 (en) * 2006-09-20 2008-03-20 Tir Technology Lp Light emitting element control system and lighting system comprising same
EP1906711A1 (fr) * 2006-09-28 2008-04-02 Valeo Vision Dispositif de contrôle d'une pluralité de charges comme des sources lumineuses et dispositif d'éclairage et/ou de signalisation de véhicule incorporant un tel dispositif de contrôle
EP2009960A2 (fr) * 2007-06-18 2008-12-31 TridonicAtco Schweiz AG Circuit protecteur pour une diode led

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19728763B4 (de) * 1997-07-07 2007-10-31 Reitter & Schefenacker Gmbh & Co. Kg Schaltungseinrichtung zum Schutz von strombetriebenen Leuchtmitteln, insbesondere von LEDs, zu Signal- oder Beleuchtungszwecken
DE10329367B4 (de) * 2003-03-28 2015-09-03 Osram Opto Semiconductors Gmbh LED-Array, LED-Modul sowie Verwendung des LED-Moduls in einer Signalanlage
ATE445308T1 (de) * 2005-12-14 2009-10-15 Koninkl Philips Electronics Nv Schaltungsanordnung zur modulierung einer led und betriebsverfahren dafür
US7738229B2 (en) * 2006-01-10 2010-06-15 Bayco Products, Ltd. Microprocessor-controlled multifunctioning light with intrinsically safe energy limiting
TWI345429B (en) * 2006-11-13 2011-07-11 Polytronics Technology Corp Light emitting diode apparatus

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1006506A1 (fr) * 1998-12-03 2000-06-07 Hewlett-Packard Company Affichage optique pour véhicule
DE10103611A1 (de) * 2001-01-26 2002-08-01 Insta Elektro Gmbh Schaltungsanordnung zum Betreiben von mehreren Leuchtmitteln
EP1322139A1 (fr) * 2001-12-19 2003-06-25 Toyoda Gosei Co., Ltd. Lampe à diodes électroluminescentes pour véhicules
US7012379B1 (en) * 2003-03-27 2006-03-14 Ilight Technologies, Inc. Cuttable illumination device
US20060197722A1 (en) * 2003-04-16 2006-09-07 Chiaki Nakajima Display led drive circuit
EP1589519A2 (fr) 2004-04-20 2005-10-26 Sony Corporation Dispositif d'attaque à courant constant, source lumineuse pour rétroéclairage, et dispositif d'affichage couleur à cristaux liquides
WO2007035883A2 (fr) 2005-09-20 2007-03-29 California Micro Devices Corporation Circuit d'attaque de chaines paralleles de del connectees en serie
US20070108843A1 (en) * 2005-11-17 2007-05-17 Preston Nigel A Series connected power supply for semiconductor-based vehicle lighting systems
WO2007069200A1 (fr) 2005-12-13 2007-06-21 Koninklijke Philips Electronics N.V. Dispositif d'eclairage a diodes electroluminescentes
US20070145914A1 (en) 2005-12-22 2007-06-28 Lg.Philips Lcd Co., Ltd. Device for driving light emitting diode
US20070159750A1 (en) * 2006-01-09 2007-07-12 Powerdsine, Ltd. Fault Detection Mechanism for LED Backlighting
US20070159736A1 (en) 2006-01-12 2007-07-12 Denso Corporation Led-based lamp apparatus
US20070257623A1 (en) * 2006-03-27 2007-11-08 Texas Instruments, Incorporated Highly efficient series string led driver with individual led control
DE102006031679A1 (de) * 2006-07-08 2008-01-10 Hella Kgaa Hueck & Co. Schaltungsanordnung zur elektrischen Ansteuerung eines Kraftfahrzeug-Scheinwerfers
US20080068192A1 (en) * 2006-09-20 2008-03-20 Tir Technology Lp Light emitting element control system and lighting system comprising same
EP1906711A1 (fr) * 2006-09-28 2008-04-02 Valeo Vision Dispositif de contrôle d'une pluralité de charges comme des sources lumineuses et dispositif d'éclairage et/ou de signalisation de véhicule incorporant un tel dispositif de contrôle
EP2009960A2 (fr) * 2007-06-18 2008-12-31 TridonicAtco Schweiz AG Circuit protecteur pour une diode led

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3182799A1 (fr) * 2015-12-18 2017-06-21 odelo GmbH Procede de fonctionnement d'un moyen d'eclairage de lampe de vehicule comprenant plusieurs sources lumineuses semi-conductrices et destine a executer le procede de moyen d'eclairage adapte

Also Published As

Publication number Publication date
EP2364059A2 (fr) 2011-09-07
EP2364059A3 (fr) 2011-11-16

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