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EP3032920A3 - Method and circuit for feeding a led light - Google Patents

Method and circuit for feeding a led light Download PDF

Info

Publication number
EP3032920A3
EP3032920A3 EP15199590.9A EP15199590A EP3032920A3 EP 3032920 A3 EP3032920 A3 EP 3032920A3 EP 15199590 A EP15199590 A EP 15199590A EP 3032920 A3 EP3032920 A3 EP 3032920A3
Authority
EP
European Patent Office
Prior art keywords
circuit
led
feeding
led light
temperature
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
Application number
EP15199590.9A
Other languages
German (de)
French (fr)
Other versions
EP3032920B1 (en
EP3032920A2 (en
Inventor
Julia Pölzl
Markus Rhein
Bernhard Wuppinger
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 SBT GmbH
Original Assignee
Siteco Beleuchtungstechnik GmbH
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 Siteco Beleuchtungstechnik GmbH filed Critical Siteco Beleuchtungstechnik GmbH
Publication of EP3032920A2 publication Critical patent/EP3032920A2/en
Publication of EP3032920A3 publication Critical patent/EP3032920A3/en
Application granted granted Critical
Publication of EP3032920B1 publication Critical patent/EP3032920B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/18—Controlling the intensity of the light using temperature feedback

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

Die Erfindung betrifft eine Schaltung zur Ansteuerung einer Leuchte mit wenigstens einer LED als Leuchtmittel, wobei die Schaltung eine Schnittstelle für einen Temperatursensor und einen Ausgang zum Bereitstellen oder Regeln eines Versorgungsstroms für die wenigstens eine LED aufweist, wobei die Schaltung dafür eingerichtet ist, den Versorgungsstrom in Abhängigkeit der vom Temperatursensor aktuell gemessenen Temperatur und eines von der Betiiebsdauer der LED abhängigen Parameters zu verändern, um eine durch Temperatur bedingte und eine durch Alterung der LED bedingte Änderung des Lichtstroms der LED auszugleichen.

Figure imgaf001
The invention relates to a circuit for controlling a luminaire with at least one LED as the lighting means, wherein the circuit has an interface for a temperature sensor and an output for providing or regulating a supply current for the at least one LED, wherein the circuit is adapted to the supply current in Dependent on the temperature currently measured by the temperature sensor and a dependent on the Betiiebsdauer the LED parameters to compensate for a conditional by temperature and due to aging of the LED change in the luminous flux of the LED.
Figure imgaf001
EP15199590.9A 2014-12-11 2015-12-11 Method and circuit for feeding a led light Active EP3032920B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014118440.8A DE102014118440A1 (en) 2014-12-11 2014-12-11 Method and circuit for supplying an LED light source

Publications (3)

Publication Number Publication Date
EP3032920A2 EP3032920A2 (en) 2016-06-15
EP3032920A3 true EP3032920A3 (en) 2016-07-06
EP3032920B1 EP3032920B1 (en) 2017-07-19

Family

ID=54979392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15199590.9A Active EP3032920B1 (en) 2014-12-11 2015-12-11 Method and circuit for feeding a led light

Country Status (2)

Country Link
EP (1) EP3032920B1 (en)
DE (1) DE102014118440A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017105131A1 (en) 2017-03-10 2018-09-13 Osram Opto Semiconductors Gmbh Method for operating an optoelectronic component and optoelectronic component
DE102017130862A1 (en) * 2017-12-21 2019-06-27 Helge Hoffmann headlights
DE102018100598A1 (en) 2018-01-12 2019-07-18 Osram Opto Semiconductors Gmbh METHOD FOR CONTROLLING A POWER OF AN ILLUMINATED DIODE
DE102018127796A1 (en) * 2018-11-07 2020-05-07 Rational Aktiengesellschaft Cooking device and method for operating a cooking device
DE102024200884B3 (en) 2024-01-31 2025-02-06 Siemens Healthineers Ag Age-compensated control of light-emitting diodes of a light strip of a medical device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783909A (en) * 1997-01-10 1998-07-21 Relume Corporation Maintaining LED luminous intensity
DE10201053A1 (en) * 2001-01-16 2002-08-01 Visteon Global Tech Inc Series LED Hinterleuchtungsteuerschaltung
US20020179816A1 (en) * 2001-06-01 2002-12-05 Haines Joshua Paul Illumination apparatus utilizing light emitting diodes
US20060028155A1 (en) * 2004-08-09 2006-02-09 Dialight Corporation Intelligent drive circuit for a light emitting diode (LED) light engine
EP2273849A2 (en) * 2009-07-09 2011-01-12 Siteco Beleuchtungstechnik GmbH LED control
US20130154476A1 (en) * 2011-12-19 2013-06-20 Andre Hessling Anti-collision aircraft light

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6414661B1 (en) * 2000-02-22 2002-07-02 Sarnoff Corporation Method and apparatus for calibrating display devices and automatically compensating for loss in their efficiency over time
DE202005020801U1 (en) * 2005-02-25 2006-09-14 Erco Leuchten Gmbh Lamp for use in building, has electrically erasable programmable ROM registering data set describing characteristics of LEDs, where data set contains information e.g. about maximum, measured luminous flux of LEDs
EP1980139B1 (en) * 2006-01-25 2012-06-06 Koninklijke Philips Electronics N.V. Control device for selecting the color of light emitted by a light source
DE102010006998A1 (en) 2010-02-05 2011-08-11 Siteco Beleuchtungstechnik GmbH, 83301 Temperature compensation of the luminous flux on LED luminaires
DE102012219876A1 (en) * 2012-10-30 2014-04-30 Osram Gmbh CALIBRATION OF AN ILLUMINATOR WITH A SEMICONDUCTOR LIGHT SOURCE
DE102013207525A1 (en) * 2013-04-25 2014-10-30 Zumtobel Lighting Gmbh Method and circuit arrangement for operating an LED light source

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783909A (en) * 1997-01-10 1998-07-21 Relume Corporation Maintaining LED luminous intensity
DE10201053A1 (en) * 2001-01-16 2002-08-01 Visteon Global Tech Inc Series LED Hinterleuchtungsteuerschaltung
US20020179816A1 (en) * 2001-06-01 2002-12-05 Haines Joshua Paul Illumination apparatus utilizing light emitting diodes
US20060028155A1 (en) * 2004-08-09 2006-02-09 Dialight Corporation Intelligent drive circuit for a light emitting diode (LED) light engine
EP2273849A2 (en) * 2009-07-09 2011-01-12 Siteco Beleuchtungstechnik GmbH LED control
US20130154476A1 (en) * 2011-12-19 2013-06-20 Andre Hessling Anti-collision aircraft light

Also Published As

Publication number Publication date
EP3032920B1 (en) 2017-07-19
DE102014118440A1 (en) 2016-06-16
EP3032920A2 (en) 2016-06-15

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