DE50306558D1 - Ansteuerschaltung für mindestens einen LED-Strang - Google Patents

Ansteuerschaltung für mindestens einen LED-Strang

Info

Publication number
DE50306558D1
DE50306558D1 DE50306558T DE50306558T DE50306558D1 DE 50306558 D1 DE50306558 D1 DE 50306558D1 DE 50306558 T DE50306558 T DE 50306558T DE 50306558 T DE50306558 T DE 50306558T DE 50306558 D1 DE50306558 D1 DE 50306558D1
Authority
DE
Germany
Prior art keywords
control circuit
led string
led strand
led
independent
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 - Lifetime
Application number
DE50306558T
Other languages
English (en)
Inventor
Alois Biebl
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority to DE50306558T priority Critical patent/DE50306558D1/de
Application granted granted Critical
Publication of DE50306558D1 publication Critical patent/DE50306558D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • 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]
    • H05B45/30—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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Devices (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
DE50306558T 2002-06-10 2003-05-23 Ansteuerschaltung für mindestens einen LED-Strang Expired - Lifetime DE50306558D1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50306558T DE50306558D1 (de) 2002-06-10 2003-05-23 Ansteuerschaltung für mindestens einen LED-Strang

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10225670A DE10225670A1 (de) 2002-06-10 2002-06-10 Ansteuerschaltung für mindestens einen LED-Strang
DE50306558T DE50306558D1 (de) 2002-06-10 2003-05-23 Ansteuerschaltung für mindestens einen LED-Strang

Publications (1)

Publication Number Publication Date
DE50306558D1 true DE50306558D1 (de) 2007-04-05

Family

ID=29557718

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10225670A Withdrawn DE10225670A1 (de) 2002-06-10 2002-06-10 Ansteuerschaltung für mindestens einen LED-Strang
DE50306558T Expired - Lifetime DE50306558D1 (de) 2002-06-10 2003-05-23 Ansteuerschaltung für mindestens einen LED-Strang

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10225670A Withdrawn DE10225670A1 (de) 2002-06-10 2002-06-10 Ansteuerschaltung für mindestens einen LED-Strang

Country Status (6)

Country Link
US (1) US7061394B2 (de)
EP (1) EP1372359B1 (de)
CN (1) CN100469208C (de)
AT (1) ATE354930T1 (de)
CA (1) CA2431514A1 (de)
DE (2) DE10225670A1 (de)

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US6836157B2 (en) * 2003-05-09 2004-12-28 Semtech Corporation Method and apparatus for driving LEDs
DE102004003698B4 (de) * 2004-01-24 2005-11-24 Preh Gmbh Schaltungsanordnung zur Ansteuerung von Leuchtmitteln
US7824627B2 (en) 2004-02-03 2010-11-02 S.C. Johnson & Son, Inc. Active material and light emitting device
US7202608B2 (en) * 2004-06-30 2007-04-10 Tir Systems Ltd. Switched constant current driving and control circuit
JP4646110B2 (ja) * 2004-10-22 2011-03-09 株式会社中川研究所 半導体発光素子用電源および照明装置
US7492108B2 (en) * 2005-08-11 2009-02-17 Texas Instruments Incorporated System and method for driving light-emitting diodes (LEDs)
GB2440603B (en) * 2005-09-12 2008-11-12 Lee Alan Bourgeois A shunt that allows a vehicle with pulsed lamp checking to use light emitting diodes
CA2733808C (en) 2005-10-03 2012-05-15 S. C. Johnson & Son, Inc. Light apparatus
TWI433588B (zh) 2005-12-13 2014-04-01 Koninkl Philips Electronics Nv 發光二極體發光裝置
EP1982560A1 (de) * 2006-01-31 2008-10-22 Koninklijke Philips Electronics N.V. Led-treiberschaltung
US7456586B2 (en) * 2006-01-31 2008-11-25 Jabil Circuit, Inc. Voltage controlled light source and image presentation device using the same
US7307391B2 (en) * 2006-02-09 2007-12-11 Led Smart Inc. LED lighting system
ATE467331T1 (de) 2006-06-22 2010-05-15 Osram Gmbh Led-ansteuereinrichtung
CN101473696B (zh) * 2006-06-22 2011-04-13 皇家飞利浦电子股份有限公司 用脉冲电流驱动负载的驱动电路
US7705547B2 (en) * 2006-10-19 2010-04-27 Honeywell International Inc. High-side current sense hysteretic LED controller
DE102006059355A1 (de) * 2006-12-15 2008-06-19 Robert Bosch Gmbh Ansteuerungseinrichtung und Verfahren zum Betrieb wenigstens einer Reihenschaltung von Leuchtdioden
US7898187B1 (en) * 2007-02-08 2011-03-01 National Semiconductor Corporation Circuit and method for average-current regulation of light emitting diodes
CN101106852B (zh) * 2007-06-25 2010-12-08 四川大学 照明发光二极管阵列的恒流和调光控制电路
US20090115343A1 (en) * 2007-11-06 2009-05-07 Brian Matthew King LED Power Regulator with High-Speed LED Switching
CN102017797B (zh) 2008-05-06 2013-04-24 皇家飞利浦电子股份有限公司 Led驱动单元
IT1391326B1 (it) * 2008-07-21 2011-12-05 Mt Lights S R L "alimentatore elettronico di potenza di diodi led"
DE102009017139A1 (de) * 2009-04-14 2010-10-21 Tridonicatco Gmbh & Co. Kg Leistungsregelung von LED
EP2420107B1 (de) 2009-04-14 2015-07-08 Tridonic GmbH & Co KG Leistungsregelung von led, mittels mittelwert des led-stroms und bidirektionaler zähler
US8350498B2 (en) * 2010-04-28 2013-01-08 National Semiconductor Corporation Dynamic current equalization for light emitting diode (LED) and other applications
CN102387627B (zh) * 2010-09-03 2015-07-29 奥斯兰姆有限公司 发光二极管驱动及调光的方法和装置、以及照明***
US8395331B2 (en) * 2010-10-05 2013-03-12 Semtech Corporation Automatic dropout prevention in LED drivers
CN102055324A (zh) * 2011-01-11 2011-05-11 北方工业大学 采用积分电路的电源控制装置及方法
DE202012100109U1 (de) 2012-01-12 2012-02-27 Productivity Engineering Gesellschaft für Prozessintegration mbH Schaltungsanordnung zum Betreiben von LED-Lichtquellen
FR2996404B1 (fr) * 2012-09-28 2015-05-29 Renault Sa Procede d'elaboration d'une consigne de fonctionnement pour un ensemble de diodes d'eclairage d'un projecteur de vehicule, et vehicule correspondant
FR2996403B1 (fr) * 2012-09-28 2015-05-22 Renault Sa Procede de regulation de la tension aux bornes d'un ensemble de diodes d'eclairage d'un projecteur de vehicule, et vehicule correspondant
DE102012224346A1 (de) * 2012-12-21 2014-06-26 Osram Gmbh Schaltungsanordnung zum Betreiben von n parallel geschalteten Strängen mit mindestens einer Halbleiterlichtquelle
CN103199506B (zh) * 2013-04-12 2015-07-15 深圳市华星光电技术有限公司 光源驱动模组的过流保护电路及背光模组
DE102015208078A1 (de) * 2015-04-30 2016-11-03 Osram Gmbh Schaltungsanordnung und Verfahren zur Verringerung der Lichtmodulation von mindestens einer an einer Spannung betriebenen Lichtquelle
DE102022200429A1 (de) 2022-01-17 2023-07-20 Osram Gmbh Zweistufiges betriebsgerät mit isolierbarem getakteten konverter als leistungsfaktorkorrektor und regelungsverfahren für das betriebsgerät

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Publication number Priority date Publication date Assignee Title
US4090189A (en) * 1976-05-20 1978-05-16 General Electric Company Brightness control circuit for LED displays
US5147294A (en) * 1990-10-01 1992-09-15 Trustees Of Boston University Therapeutic method for reducing chronic pain in a living subject
US5758644A (en) * 1995-06-07 1998-06-02 Masimo Corporation Manual and automatic probe calibration
US5949225A (en) * 1998-03-19 1999-09-07 Astec International Limited Adjustable feedback circuit for adaptive opto drives
DE19950135A1 (de) * 1999-10-18 2001-04-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Ansteuerschaltung für LED und zugehöriges Betriebsverfahren
JP2001326569A (ja) * 2000-05-16 2001-11-22 Toshiba Corp Ｌｅｄ駆動回路及び光送信モジュール
JP2002203988A (ja) * 2000-12-28 2002-07-19 Toshiba Lsi System Support Kk 発光素子駆動回路
US6586890B2 (en) * 2001-12-05 2003-07-01 Koninklijke Philips Electronics N.V. LED driver circuit with PWM output
US6825619B2 (en) * 2002-08-08 2004-11-30 Datex-Ohmeda, Inc. Feedback-controlled LED switching

Also Published As

Publication number Publication date
ATE354930T1 (de) 2007-03-15
EP1372359A1 (de) 2003-12-17
EP1372359B1 (de) 2007-02-21
DE10225670A1 (de) 2003-12-24
US20030227265A1 (en) 2003-12-11
US7061394B2 (en) 2006-06-13
CN100469208C (zh) 2009-03-11
CN1469694A (zh) 2004-01-21
CA2431514A1 (en) 2003-12-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, , DE