EP0952757A3 - Schaltungsanordnung zur Einstellung der Helligkeit stromgesteurter Leuchtdioden zur Beleuchtung einer Anzeige - Google Patents
Schaltungsanordnung zur Einstellung der Helligkeit stromgesteurter Leuchtdioden zur Beleuchtung einer Anzeige Download PDFInfo
- Publication number
- EP0952757A3 EP0952757A3 EP99107236A EP99107236A EP0952757A3 EP 0952757 A3 EP0952757 A3 EP 0952757A3 EP 99107236 A EP99107236 A EP 99107236A EP 99107236 A EP99107236 A EP 99107236A EP 0952757 A3 EP0952757 A3 EP 0952757A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- der
- die
- emitting diodes
- light
- control unit
- 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.)
- Granted
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]
- H05B45/10—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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
- H05B47/28—Circuit arrangements for protecting against abnormal temperature
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19818621 | 1998-04-25 | ||
DE19818621A DE19818621A1 (de) | 1998-04-25 | 1998-04-25 | Schaltungsanordnung zur Einstellung der Helligkeit stromgesteuerter Leuchtdioden zur Beleuchtung einer Anzeige |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0952757A2 EP0952757A2 (de) | 1999-10-27 |
EP0952757A3 true EP0952757A3 (de) | 2001-03-07 |
EP0952757B1 EP0952757B1 (de) | 2004-08-04 |
Family
ID=7865835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99107236A Expired - Lifetime EP0952757B1 (de) | 1998-04-25 | 1999-04-14 | Schaltungsanordnung zur Einstellung der Helligkeit stromgesteurter Leuchtdioden zur Beleuchtung einer Anzeige |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0952757B1 (de) |
DE (2) | DE19818621A1 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4422832B2 (ja) * | 1999-11-05 | 2010-02-24 | アビックス株式会社 | Led電灯 |
US6333602B1 (en) * | 1999-12-14 | 2001-12-25 | Exfo Photonic Solutions Inc. | Smart light source with integrated operational parameters data storage capability |
WO2002035894A1 (en) * | 2000-10-27 | 2002-05-02 | Koninklijke Philips Electronics N.V. | Circuit arrangement |
US6441558B1 (en) * | 2000-12-07 | 2002-08-27 | Koninklijke Philips Electronics N.V. | White LED luminary light control system |
DE10113248A1 (de) * | 2001-03-19 | 2002-10-02 | Able Design Ges Fuer Entwicklu | Verfahren zur Kompensation des Einbrennens von Plasma-Bildschirmen |
DE10146191A1 (de) * | 2001-09-17 | 2003-04-10 | Ackermann Albert Gmbh Co | Verfahren zur Leuchtmittelüberwachung von Lichtrufsystemen und Lichtrufsystem |
DE10160667A1 (de) * | 2001-12-11 | 2003-06-26 | Cherry Gmbh | Verfahren und Vorrichtung zur Ansteuerung von Elektrolumineszenz-Elementen |
US7425798B2 (en) * | 2003-01-23 | 2008-09-16 | Lumination Llc | Intelligent light degradation sensing LED traffic signal |
US7132805B2 (en) | 2004-08-09 | 2006-11-07 | Dialight Corporation | Intelligent drive circuit for a light emitting diode (LED) light engine |
DE102005018175A1 (de) * | 2005-04-19 | 2006-10-26 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | LED-Modul und LED-Beleuchtungseinrichtung mit mehreren LED-Modulen |
FR2900304B1 (fr) | 2006-04-20 | 2012-03-02 | Valeo Vision | Dispositif de commande de led pour un feu de vehicule |
CN101106856B (zh) * | 2006-07-10 | 2012-01-25 | 东芝照明技术株式会社 | 照明装置 |
DE102006054512B4 (de) * | 2006-11-20 | 2016-01-14 | Zumtobel Lighting Gmbh | Verfahren zum Betreiben einer Lichtquelle sowie Lampenbetriebsgerät hierfür |
DE102007024078A1 (de) * | 2007-03-23 | 2008-10-02 | Visteon Global Technologies, Inc., Van Buren Township | Ansteuereinheit für eine Lichtquelle eines beleuchteten Anzeige- und/oder Bedienelement sowie Verfahren und Vorrichtung zu dessen Kalibrierung |
DE102007031801A1 (de) * | 2007-07-07 | 2009-01-08 | Bayerische Motoren Werke Aktiengesellschaft | Kraftfahrzeugleuchtensystem |
WO2009037720A1 (en) * | 2007-09-17 | 2009-03-26 | Wissen Lux S.P.A. | Led illuminating device |
DE102009014998A1 (de) | 2009-03-26 | 2010-09-30 | Tridonicatco Gmbh & Co. Kg | Dimmbares Betriebsgerät und Beleuchtungssystem zur Erhöhung der Lebenserwartung bei LEDs und OLEDs |
DE102009054067A1 (de) * | 2009-11-20 | 2011-05-26 | Osram Opto Semiconductors Gmbh | Licht emittierende Vorrichtung |
JP5720882B2 (ja) * | 2011-01-31 | 2015-05-20 | 東芝ライテック株式会社 | 点灯装置および照明装置 |
US9524641B2 (en) | 2011-03-22 | 2016-12-20 | GE Lighting Solutions, LLC | LED traffic signal fault logging system and method |
DE102011006696A1 (de) * | 2011-04-04 | 2012-10-04 | Zf Friedrichshafen Ag | Leistungselektronikbaugruppe |
DE102011016360B4 (de) * | 2011-04-07 | 2019-10-02 | Infineon Technologies Ag | Fahrzeugbeleuchtungsanordnung, Leuchtmitteltreiberschaltung und Verfahren zur Bereitstellung von Informationen zur Bestimmung eines Beleuchtungszustandes |
DE102011084951A1 (de) * | 2011-10-21 | 2013-04-25 | Zumtobel Lighting Gmbh | LED-Leuchte mit einstellbarer Helligkeit |
DE102016104493A1 (de) | 2016-03-11 | 2017-09-14 | Itz Innovations- Und Technologiezentrum Gmbh | Verfahren zum Betrieb eines Leuchtmittels |
CA3023070A1 (en) * | 2016-05-02 | 2017-11-09 | Growflux Llc | System and method for advanced horticultural lighting |
DE102016213192A1 (de) * | 2016-07-19 | 2018-01-25 | BSH Hausgeräte GmbH | Reduktion von Helligkeitsunterschieden beim Betrieb einer Beleuchtungsvorrichtung eines Haushaltsgeräts mit mehreren Leuchtmitteln |
DE102017206818A1 (de) | 2017-04-24 | 2018-10-25 | Volkswagen Aktiengesellschaft | Fahrstufenanzeige-Ausleuchteinheit |
DE102018100598A1 (de) * | 2018-01-12 | 2019-07-18 | Osram Opto Semiconductors Gmbh | Verfahren zum steuern eines stromes einer leuchtdiode |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992005608A1 (en) * | 1990-09-14 | 1992-04-02 | Finisar Corporation | Semiconductor laser diode controller and laser diode biasing control method |
EP0497431A1 (de) * | 1987-04-13 | 1992-08-05 | Sharp Kabushiki Kaisha | Apparat zum Betreiben einer Halbleiterlaservorrichtung |
EP0583186A1 (de) * | 1992-07-30 | 1994-02-16 | France Telecom | Vorrichtung zur Leistungsstabilisierung von Laserdioden |
EP0669684A2 (de) * | 1991-05-10 | 1995-08-30 | Fujitsu Limited | Regeleinrichtung für Halbleiterlaser zur Erhöhung der Lebensdauer der Halbleiterlaser durch Feststellung des im Halbleiterlaser, beginnend vom Anfangszustand, erfolgenden Stromanstiegs |
EP0702347A1 (de) * | 1994-07-18 | 1996-03-20 | Kabushiki Kaisha Toshiba | Punktmatrix-Leuchtdiodenanzeige und Helligkeitsregelungsverfahren dafür |
DE19540326A1 (de) * | 1995-10-28 | 1997-04-30 | Bosch Gmbh Robert | Scheinwerfer für Fahrzeuge |
DE19602891A1 (de) * | 1996-01-27 | 1997-08-07 | Kammerer Gmbh M | Verfahren und Anordnung zur Einstellung der Helligkeit eines strom- oder spannungsgesteuerten Leuchtmittels zur Hinterleuchtung einer Anzeige, insbesondere für Kraftfahrzeuge |
US5719675A (en) * | 1992-06-16 | 1998-02-17 | Honeywell Inc. | Laser gyro life prediction |
-
1998
- 1998-04-25 DE DE19818621A patent/DE19818621A1/de not_active Ceased
-
1999
- 1999-04-14 DE DE59910096T patent/DE59910096D1/de not_active Expired - Lifetime
- 1999-04-14 EP EP99107236A patent/EP0952757B1/de not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0497431A1 (de) * | 1987-04-13 | 1992-08-05 | Sharp Kabushiki Kaisha | Apparat zum Betreiben einer Halbleiterlaservorrichtung |
WO1992005608A1 (en) * | 1990-09-14 | 1992-04-02 | Finisar Corporation | Semiconductor laser diode controller and laser diode biasing control method |
EP0669684A2 (de) * | 1991-05-10 | 1995-08-30 | Fujitsu Limited | Regeleinrichtung für Halbleiterlaser zur Erhöhung der Lebensdauer der Halbleiterlaser durch Feststellung des im Halbleiterlaser, beginnend vom Anfangszustand, erfolgenden Stromanstiegs |
US5719675A (en) * | 1992-06-16 | 1998-02-17 | Honeywell Inc. | Laser gyro life prediction |
EP0583186A1 (de) * | 1992-07-30 | 1994-02-16 | France Telecom | Vorrichtung zur Leistungsstabilisierung von Laserdioden |
EP0702347A1 (de) * | 1994-07-18 | 1996-03-20 | Kabushiki Kaisha Toshiba | Punktmatrix-Leuchtdiodenanzeige und Helligkeitsregelungsverfahren dafür |
DE19540326A1 (de) * | 1995-10-28 | 1997-04-30 | Bosch Gmbh Robert | Scheinwerfer für Fahrzeuge |
DE19602891A1 (de) * | 1996-01-27 | 1997-08-07 | Kammerer Gmbh M | Verfahren und Anordnung zur Einstellung der Helligkeit eines strom- oder spannungsgesteuerten Leuchtmittels zur Hinterleuchtung einer Anzeige, insbesondere für Kraftfahrzeuge |
Also Published As
Publication number | Publication date |
---|---|
EP0952757B1 (de) | 2004-08-04 |
DE19818621A1 (de) | 1999-10-28 |
DE59910096D1 (de) | 2004-09-09 |
EP0952757A2 (de) | 1999-10-27 |
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