DE50200723D1 - Ansteuerschaltung für ein LED-Array - Google Patents
Ansteuerschaltung für ein LED-ArrayInfo
- Publication number
- DE50200723D1 DE50200723D1 DE50200723T DE50200723T DE50200723D1 DE 50200723 D1 DE50200723 D1 DE 50200723D1 DE 50200723 T DE50200723 T DE 50200723T DE 50200723 T DE50200723 T DE 50200723T DE 50200723 D1 DE50200723 D1 DE 50200723D1
- Authority
- DE
- Germany
- Prior art keywords
- control circuit
- led array
- led
- array
- circuit
- 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
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
- H05B45/58—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
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50200723T DE50200723D1 (de) | 2001-03-28 | 2002-02-01 | Ansteuerschaltung für ein LED-Array |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10115388A DE10115388A1 (de) | 2001-03-28 | 2001-03-28 | Ansteuerschaltung für ein LED-Array |
DE50200723T DE50200723D1 (de) | 2001-03-28 | 2002-02-01 | Ansteuerschaltung für ein LED-Array |
Publications (1)
Publication Number | Publication Date |
---|---|
DE50200723D1 true DE50200723D1 (de) | 2004-09-09 |
Family
ID=7679451
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10115388A Withdrawn DE10115388A1 (de) | 2001-03-28 | 2001-03-28 | Ansteuerschaltung für ein LED-Array |
DE50200723T Expired - Lifetime DE50200723D1 (de) | 2001-03-28 | 2002-02-01 | Ansteuerschaltung für ein LED-Array |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10115388A Withdrawn DE10115388A1 (de) | 2001-03-28 | 2001-03-28 | Ansteuerschaltung für ein LED-Array |
Country Status (3)
Country | Link |
---|---|
US (1) | US6864867B2 (de) |
EP (1) | EP1246511B1 (de) |
DE (2) | DE10115388A1 (de) |
Families Citing this family (68)
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JP2003249383A (ja) * | 2002-02-25 | 2003-09-05 | Patoraito:Kk | Led表示灯の故障診断回路 |
JP2004009826A (ja) * | 2002-06-05 | 2004-01-15 | Koito Mfg Co Ltd | 車両用灯具装置 |
US6979959B2 (en) * | 2002-12-13 | 2005-12-27 | Microsemi Corporation | Apparatus and method for striking a fluorescent lamp |
GB2400691B (en) * | 2003-04-16 | 2005-10-26 | Peter Norman Langmead | Apparatus and method for operating current dependent electronic devices |
JP4148827B2 (ja) * | 2003-04-28 | 2008-09-10 | 株式会社小糸製作所 | 車両用灯具 |
KR20120018825A (ko) | 2003-05-07 | 2012-03-05 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | 평균 암페어수 조절 방법 및 led 전류 제어 회로 |
DE10324609B4 (de) * | 2003-05-30 | 2014-11-13 | Osram Gmbh | Ansteuerschaltung und LED-Array sowie Verfahren zum Betreiben eines LED-Arrays |
US7187139B2 (en) * | 2003-09-09 | 2007-03-06 | Microsemi Corporation | Split phase inverters for CCFL backlight system |
JP2005093196A (ja) * | 2003-09-17 | 2005-04-07 | Moritex Corp | 照明方法、照明装置及びその部品 |
US7183727B2 (en) * | 2003-09-23 | 2007-02-27 | Microsemi Corporation | Optical and temperature feedbacks to control display brightness |
US7242147B2 (en) * | 2003-10-06 | 2007-07-10 | Microsemi Corporation | Current sharing scheme for multiple CCF lamp operation |
WO2005043592A2 (en) * | 2003-10-21 | 2005-05-12 | Microsemi Corporation | Balancing transformers for lamps driven in parallel |
US7187140B2 (en) * | 2003-12-16 | 2007-03-06 | Microsemi Corporation | Lamp current control using profile synthesizer |
US7468722B2 (en) | 2004-02-09 | 2008-12-23 | Microsemi Corporation | Method and apparatus to control display brightness with ambient light correction |
JP4606190B2 (ja) * | 2004-03-30 | 2011-01-05 | ローム株式会社 | 電圧制御装置および電圧制御方法、ならびにそれを利用した電子機器 |
US7112929B2 (en) * | 2004-04-01 | 2006-09-26 | Microsemi Corporation | Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system |
US7250731B2 (en) * | 2004-04-07 | 2007-07-31 | Microsemi Corporation | Primary side current balancing scheme for multiple CCF lamp operation |
US7755595B2 (en) | 2004-06-07 | 2010-07-13 | Microsemi Corporation | Dual-slope brightness control for transflective displays |
DE102004033980A1 (de) * | 2004-07-14 | 2006-02-16 | Infineon Technologies Ag | Verfahren sowie Schaltungsanordnung zur Ansteuerung einer Last mit einem elektrischen Strom |
JP2008509523A (ja) * | 2004-08-04 | 2008-03-27 | ン、ジェイムス、ケー. | Led照明装置 |
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 |
KR101110132B1 (ko) * | 2004-11-24 | 2012-02-10 | 엘지디스플레이 주식회사 | 램프 오픈 감지회로와 감지방법 및 그 디스플레이 장치 |
US7345433B2 (en) * | 2005-01-05 | 2008-03-18 | Bacon Christopher C | Reversible polarity LED lamp module using current regulator and method therefor |
EP1691580B1 (de) * | 2005-02-11 | 2011-01-19 | STMicroelectronics Srl | Vorrichtung zur Versorgung einer mehrzweigigen Leuchtdiodenschaltung |
KR100628718B1 (ko) * | 2005-02-26 | 2006-09-28 | 삼성전자주식회사 | Led구동장치 |
DE202005021665U1 (de) * | 2005-06-20 | 2009-04-02 | Austriamicrosystems Ag | Stromquellenanordnung |
JP2007005014A (ja) * | 2005-06-21 | 2007-01-11 | Toshiba Matsushita Display Technology Co Ltd | 照明装置及び液晶表示装置 |
US7675487B2 (en) * | 2005-07-15 | 2010-03-09 | Honeywell International, Inc. | Simplified light-emitting diode (LED) hysteretic current controller |
DE102005036692A1 (de) * | 2005-08-04 | 2007-02-08 | Hella Kgaa Hueck & Co. | Beleuchtungseinrichtung für Fahrzeugleuchten |
US20070114951A1 (en) * | 2005-11-22 | 2007-05-24 | Tsen Chia-Hung | Drive circuit for a light emitting diode array |
US7456586B2 (en) * | 2006-01-31 | 2008-11-25 | Jabil Circuit, Inc. | Voltage controlled light source and image presentation device using the same |
DE102006005521B3 (de) * | 2006-02-07 | 2007-05-16 | Lear Corp | Schaltung und Verfahren zum Ansteuern eines LED-Array's |
EP1830607B1 (de) * | 2006-03-03 | 2010-08-18 | Actia (UK) Limited | Beleuchtung und Systeme zur Beleuchtungssteuerung |
EP1843639A1 (de) * | 2006-04-06 | 2007-10-10 | Kwang Yang Motor Co., Ltd. | LED-Fahrzeuglampe-vorrichtung |
TWI308731B (en) | 2006-06-09 | 2009-04-11 | Htc Corp | Light driving device |
CN101090595B (zh) * | 2006-06-13 | 2014-09-10 | 宏达国际电子股份有限公司 | 灯号驱动装置 |
DE602006014955D1 (de) * | 2006-06-28 | 2010-07-29 | Osram Gmbh | LED-Schaltung mit Stromregelung |
US7569998B2 (en) | 2006-07-06 | 2009-08-04 | Microsemi Corporation | Striking and open lamp regulation for CCFL controller |
DE102006037342B4 (de) * | 2006-08-08 | 2013-07-18 | Johnson Controls Automotive Electronics Gmbh | Schaltung für ein Kraftfahrzeug, insbesondere zur Ansteuerung einer Beleuchtungseinrichtung |
RU2462002C2 (ru) * | 2006-10-31 | 2012-09-20 | Конинклейке Филипс Электроникс Н.В. | Источник света, содержащий светоизлучающие кластеры |
US7714517B2 (en) * | 2007-04-19 | 2010-05-11 | Au Optronics Corporation | LED driver with current sink control and applications of the same |
EP2469151B1 (de) * | 2007-05-08 | 2018-08-29 | Cree, Inc. | Beleuchtungsvorrichtungen und Beleuchtungsverfahren |
US7746007B2 (en) * | 2007-11-26 | 2010-06-29 | American Panel Corporation, Inc. | LED backlight circuit system |
US8247999B2 (en) * | 2008-01-22 | 2012-08-21 | Alcatel Lucent | Time division multiplexing a DC-to-DC voltage converter |
TW200939886A (en) | 2008-02-05 | 2009-09-16 | Microsemi Corp | Balancing arrangement with reduced amount of balancing transformers |
TW201012302A (en) * | 2008-09-12 | 2010-03-16 | Univ Nat Central | Control method for maintaining the luminous intensity of a light-emitting diode light source |
CN102160464B (zh) * | 2008-09-23 | 2014-04-30 | 皇家飞利浦电子股份有限公司 | 用于例如led驱动器的电源的具有自动重置的限流控制 |
US8093839B2 (en) | 2008-11-20 | 2012-01-10 | Microsemi Corporation | Method and apparatus for driving CCFL at low burst duty cycle rates |
DE102008060947A1 (de) * | 2008-12-06 | 2009-09-17 | Daimler Ag | Verfahren zum Betrieb einer Beleuchtungsvorrichtung, insbesondere eines Fahrzeugscheinwerfers |
BRPI1005357A2 (pt) * | 2009-02-02 | 2020-02-04 | Koninl Philips Electronics Nv | ''sistema de alarme codificado para uma unidade de iluminação e método das anormalidades indicadoras na operação de uma unidade de iluminação'' |
TWI413331B (zh) * | 2009-07-27 | 2013-10-21 | Fsp Technology Inc | 被動式電流平衡驅動裝置 |
TW201117657A (en) * | 2009-11-13 | 2011-05-16 | Well Shin Technology Co Ltd | Electric current equilibrium circuit of string LED group |
CN101778508B (zh) * | 2010-01-18 | 2012-10-31 | 友达光电股份有限公司 | 发光二极管驱动电路及驱动方法 |
DE102010006865B4 (de) * | 2010-02-04 | 2018-10-11 | Austriamicrosystems Ag | Stromquelle, Stromquellenanordnung und deren Verwendung |
WO2011107138A1 (de) * | 2010-03-01 | 2011-09-09 | Hella Kgaa Hueck & Co. | Verfahren zur stromversorgung eines led-arrays sowie schaltungsanordnung zur durchführung des verfahrens |
US9030119B2 (en) | 2010-07-19 | 2015-05-12 | Microsemi Corporation | LED string driver arrangement with non-dissipative current balancer |
JP5842090B2 (ja) * | 2010-08-25 | 2016-01-13 | パナソニックIpマネジメント株式会社 | 照明光通信装置 |
US8754581B2 (en) | 2011-05-03 | 2014-06-17 | Microsemi Corporation | High efficiency LED driving method for odd number of LED strings |
CN103477712B (zh) | 2011-05-03 | 2015-04-08 | 美高森美公司 | 高效led驱动方法 |
US8907568B2 (en) * | 2011-10-24 | 2014-12-09 | Microsemi Corporation | Method and apparatus for LED string short circuit detection and protection |
WO2014100919A1 (zh) * | 2012-12-28 | 2014-07-03 | 钰瀚科技股份有限公司 | 具有驱动多数个发光二极管串的通用结构的装置 |
DE102013202282A1 (de) * | 2013-02-13 | 2014-08-14 | Continental Automotive Gmbh | Lichtquelle und Verfahren zur Herstellung der Lichtquelle |
KR20150117520A (ko) * | 2014-04-10 | 2015-10-20 | 삼성전자주식회사 | 발광 다이오드 구동회로, 발광 다이오드 제어 회로 및 발광 다이오드 제어 방법 |
JP6571918B2 (ja) * | 2014-10-02 | 2019-09-04 | ローム株式会社 | 発光素子駆動回路、発光装置、車両 |
CN104952394A (zh) * | 2015-06-30 | 2015-09-30 | 苏州合欣美电子科技有限公司 | 一种八分之一扫描led显示屏驱动电路 |
US10257900B2 (en) * | 2015-09-08 | 2019-04-09 | Signify Holding B.V. | Determining property of unchanged load device |
US11495120B2 (en) * | 2018-04-10 | 2022-11-08 | Advancetrex Sensor Technologies Corp. | Universal programmable optic/acoustic signaling device with self-diagnosis |
CN108534089A (zh) * | 2018-04-12 | 2018-09-14 | 上海小糸车灯有限公司 | 日间行车灯联动控制策略和日间行车灯 |
Family Cites Families (14)
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DE3429107C2 (de) * | 1983-08-08 | 1996-12-12 | Canon Kk | Bildaufzeichnungsgerät |
JP3069587B2 (ja) * | 1988-11-01 | 2000-07-24 | セイコーエプソン株式会社 | 多出力電流供給用集積回路及びそれを用いた複数の被駆動素子の駆動制御装置 |
JP3117814B2 (ja) * | 1992-11-06 | 2000-12-18 | 株式会社東芝 | 自動再充電点灯装置 |
US5420768A (en) * | 1993-09-13 | 1995-05-30 | Kennedy; John | Portable led photocuring device |
US5936599A (en) * | 1995-01-27 | 1999-08-10 | Reymond; Welles | AC powered light emitting diode array circuits for use in traffic signal displays |
DE19734750C2 (de) * | 1997-08-12 | 2003-04-30 | Reitter & Schefenacker Gmbh | Heckleuchte von Kraftfahrzeugen |
DE19749333A1 (de) * | 1997-09-19 | 1999-03-25 | Garufo Gmbh | Leuchtsignal |
JP2001522621A (ja) * | 1997-11-12 | 2001-11-20 | シンチレート・リミテッド | 宝飾照明に関する改良 |
DE19835159C2 (de) * | 1998-08-04 | 2001-08-02 | Agfa Gevaert Ag | Vorrichtung zum Belichten von fotografischem Aufzeichnungsmaterial |
DE19930174A1 (de) * | 1999-06-30 | 2001-01-04 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Ansteuerschaltung für LED und zugehöriges Betriebsverfahren |
US6153985A (en) * | 1999-07-09 | 2000-11-28 | Dialight Corporation | LED driving circuitry with light intensity feedback to control output light intensity of an LED |
DE19950135A1 (de) * | 1999-10-18 | 2001-04-19 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Ansteuerschaltung für LED und zugehöriges Betriebsverfahren |
JP4550958B2 (ja) * | 1999-11-16 | 2010-09-22 | 株式会社沖データ | 駆動回路 |
US6636003B2 (en) * | 2000-09-06 | 2003-10-21 | Spectrum Kinetics | Apparatus and method for adjusting the color temperature of white semiconduct or light emitters |
-
2001
- 2001-03-28 DE DE10115388A patent/DE10115388A1/de not_active Withdrawn
-
2002
- 2002-02-01 EP EP02002468A patent/EP1246511B1/de not_active Expired - Lifetime
- 2002-02-01 DE DE50200723T patent/DE50200723D1/de not_active Expired - Lifetime
- 2002-02-12 US US10/074,121 patent/US6864867B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE10115388A1 (de) | 2002-10-10 |
US20020140380A1 (en) | 2002-10-03 |
EP1246511B1 (de) | 2004-08-04 |
EP1246511A1 (de) | 2002-10-02 |
US6864867B2 (en) | 2005-03-08 |
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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 |