EP2911480A3 - Schaltungsanordnung und Verfahren zum Überwachen des Stromflusses durch LEDs - Google Patents

Schaltungsanordnung und Verfahren zum Überwachen des Stromflusses durch LEDs Download PDF

Info

Publication number
EP2911480A3
EP2911480A3 EP15155346.8A EP15155346A EP2911480A3 EP 2911480 A3 EP2911480 A3 EP 2911480A3 EP 15155346 A EP15155346 A EP 15155346A EP 2911480 A3 EP2911480 A3 EP 2911480A3
Authority
EP
European Patent Office
Prior art keywords
leds
monitoring
flow
electricity
circuit assembly
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
EP15155346.8A
Other languages
English (en)
French (fr)
Other versions
EP2911480A2 (de
EP2911480B1 (de
Inventor
David GAJDOS
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2911480A2 publication Critical patent/EP2911480A2/de
Publication of EP2911480A3 publication Critical patent/EP2911480A3/de
Application granted granted Critical
Publication of EP2911480B1 publication Critical patent/EP2911480B1/de
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]
    • H05B45/40—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
    • 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
    • H05B45/52—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a parallel array 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
    • 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
    • H05B47/23—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in series

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Measuring Volume Flow (AREA)
  • Led Devices (AREA)

Abstract

Eine Schaltungsanordnung (20) zum Überwachen des Stromflusses durch einen Strang (10) seriell verschalteter LEDs (11) weist einen in Serie zu den LEDs (11) geschalteten Messwiderstand (21) sowie weitere Komponenten (22) auf, welche dazu ausgebildet sind, den Stromfluss durch die LEDs (11) anhand des Spannungsabfalls über den Messwiderstand (21) zu bewerten und bei Überschreiten eines vorgegebenen Stromwerts ein Signal auszugeben.
EP15155346.8A 2014-02-19 2015-02-17 Schaltungsanordnung und Verfahren zum Überwachen des Stromflusses durch LEDs Active EP2911480B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014203007.2A DE102014203007A1 (de) 2014-02-19 2014-02-19 Schaltungsanordnung und Verfahren zum Überwachen des Stromflusses durch LEDs

Publications (3)

Publication Number Publication Date
EP2911480A2 EP2911480A2 (de) 2015-08-26
EP2911480A3 true EP2911480A3 (de) 2015-11-18
EP2911480B1 EP2911480B1 (de) 2020-05-06

Family

ID=52472247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15155346.8A Active EP2911480B1 (de) 2014-02-19 2015-02-17 Schaltungsanordnung und Verfahren zum Überwachen des Stromflusses durch LEDs

Country Status (3)

Country Link
EP (1) EP2911480B1 (de)
AT (1) AT15257U1 (de)
DE (1) DE102014203007A1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19802895A1 (de) * 1998-01-21 1999-07-22 Siemens Ag Schaltung zum Betreiben eines LED-Leuchtzeichens
DE10236862A1 (de) * 2002-08-12 2004-03-04 Hella Kg Hueck & Co. Schaltungsanordnung zur Stromversorgung und zum Steuern von Leuchtdiodenanordnungen, insbesondere in Fahrzeugleuchten
DE102006015053A1 (de) * 2005-04-13 2006-10-19 GM Global Technology Operations, Inc., Detroit LED-Blinker und Fehlerdetektionsverfahren
US20090189539A1 (en) * 2008-01-25 2009-07-30 Micrel, Inc. Controlling Current Through Serial LEDs Using a Low Voltage Transistor When Using a High Voltage Driver
WO2012077013A2 (en) * 2010-12-08 2012-06-14 Koninklijke Philips Electronics N.V. Control circuit for led lamps in automobile applications
US20130063035A1 (en) * 2011-09-12 2013-03-14 Juno Manufacturing, LLC Dimmable led light fixture having adjustable color temperature
DE102013213639A1 (de) * 2012-07-27 2014-01-30 Infineon Technologies Ag LED-Controller mit Stromwelligkeitssteuerung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10131824B4 (de) * 2001-06-30 2011-09-29 Hella Kgaa Hueck & Co. Schaltungseinrichtung für die Ausfallerkennung von Leuchtdioden in einem Kraftfahrzeug
DE102004027676B4 (de) * 2004-04-30 2006-06-14 Siemens Ag Verfahren und Vorrichtung zum Prüfen wenigstens eines LED-Strangs
JP5449842B2 (ja) * 2009-04-23 2014-03-19 株式会社小糸製作所 車両用灯具の点灯制御装置
US10264637B2 (en) * 2009-09-24 2019-04-16 Cree, Inc. Solid state lighting apparatus with compensation bypass circuits and methods of operation thereof
JP5942314B2 (ja) * 2011-02-22 2016-06-29 パナソニックＩｐマネジメント株式会社 点灯装置および、これを用いた照明器具

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19802895A1 (de) * 1998-01-21 1999-07-22 Siemens Ag Schaltung zum Betreiben eines LED-Leuchtzeichens
DE10236862A1 (de) * 2002-08-12 2004-03-04 Hella Kg Hueck & Co. Schaltungsanordnung zur Stromversorgung und zum Steuern von Leuchtdiodenanordnungen, insbesondere in Fahrzeugleuchten
DE102006015053A1 (de) * 2005-04-13 2006-10-19 GM Global Technology Operations, Inc., Detroit LED-Blinker und Fehlerdetektionsverfahren
US20090189539A1 (en) * 2008-01-25 2009-07-30 Micrel, Inc. Controlling Current Through Serial LEDs Using a Low Voltage Transistor When Using a High Voltage Driver
WO2012077013A2 (en) * 2010-12-08 2012-06-14 Koninklijke Philips Electronics N.V. Control circuit for led lamps in automobile applications
US20130063035A1 (en) * 2011-09-12 2013-03-14 Juno Manufacturing, LLC Dimmable led light fixture having adjustable color temperature
DE102013213639A1 (de) * 2012-07-27 2014-01-30 Infineon Technologies Ag LED-Controller mit Stromwelligkeitssteuerung

Also Published As

Publication number Publication date
AT15257U1 (de) 2017-04-15
EP2911480A2 (de) 2015-08-26
DE102014203007A1 (de) 2015-08-20
EP2911480B1 (de) 2020-05-06

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