WO2013067563A3 - Betriebsschaltung für leuchtdioden - Google Patents

Betriebsschaltung für leuchtdioden Download PDF

Info

Publication number
WO2013067563A3
WO2013067563A3 PCT/AT2012/000288 AT2012000288W WO2013067563A3 WO 2013067563 A3 WO2013067563 A3 WO 2013067563A3 AT 2012000288 W AT2012000288 W AT 2012000288W WO 2013067563 A3 WO2013067563 A3 WO 2013067563A3
Authority
WO
WIPO (PCT)
Prior art keywords
switch
led
value
low
operating circuit
Prior art date
Application number
PCT/AT2012/000288
Other languages
English (en)
French (fr)
Other versions
WO2013067563A2 (de
Inventor
Ueli Keller
Thomas Kueng
Eduardo Pereira
Original Assignee
Tridonic Gmbh & Co. Kg
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 Tridonic Gmbh & Co. Kg filed Critical Tridonic Gmbh & Co. Kg
Priority to DE112012004690.0T priority Critical patent/DE112012004690A5/de
Publication of WO2013067563A2 publication Critical patent/WO2013067563A2/de
Publication of WO2013067563A3 publication Critical patent/WO2013067563A3/de

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
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • 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
    • H05B45/32—Pulse-control circuits
    • H05B45/327—Burst dimming
    • 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

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

Abstract

Betriebsschaltung für wenigstens eine LED, bei der durch getakteten Schalter (S1) eine Versorgungsspannung für wenigstens eine LED bereitstellt, wobei bei eingeschaltetem Schalter (S1) in einer Spule (L1) eine Energie zwischengespeichert wird, die sich bei ausgeschaltetem Schalter (S1) über wenigstens eine LED entlädt, und eine Steuer/Regeleinheit (SR) den Schalter (S1) derart ansteuert, dass der LED Strom (iLED) auf einen vorgegebenen Wert geregelt wird und zum Einstellen der Helligkeit der LED jeweils niederfrequente PWM-Pakete einstellbarer Breite erzeugt werden, gekennzeichnet dadurch, dass sich die Einschaltzeit des Schalters (S1) aus dem gemittelten Wert des Stromes durch die LED während eines niederfrequenten PWM-Paketes ergibt und zu Beginn eines nächsten niederfrequenten PWM-Paketes die Einschaltzeit des Schalters (S1) um einen Aufschlagwert zusätzlich zu dem sich aus der Regelschleife ergebenden Wert der Einschaltzeit erhöht wird.
PCT/AT2012/000288 2011-11-11 2012-11-12 Betriebsschaltung für leuchtdioden WO2013067563A2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112012004690.0T DE112012004690A5 (de) 2011-11-11 2012-11-12 Betriebsschaltung für Leuchtdioden

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT6182011 2011-11-11
ATGM618/2011 2011-11-11

Publications (2)

Publication Number Publication Date
WO2013067563A2 WO2013067563A2 (de) 2013-05-16
WO2013067563A3 true WO2013067563A3 (de) 2013-08-22

Family

ID=48290693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2012/000288 WO2013067563A2 (de) 2011-11-11 2012-11-12 Betriebsschaltung für leuchtdioden

Country Status (2)

Country Link
DE (1) DE112012004690A5 (de)
WO (1) WO2013067563A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018206205A1 (de) * 2018-04-23 2019-10-24 Tridonic Gmbh & Co Kg Versorgungsschaltung und verfahren zur versorgung einer elektrischen last

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030085749A1 (en) * 2000-02-03 2003-05-08 Koninklijke Philips Electronics N.V. Supply assembly for a led lighting module
US20110260641A1 (en) * 2006-05-26 2011-10-27 Nexxus Lighting, Inc. Current regulator apparatus and methods

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030085749A1 (en) * 2000-02-03 2003-05-08 Koninklijke Philips Electronics N.V. Supply assembly for a led lighting module
US20110260641A1 (en) * 2006-05-26 2011-10-27 Nexxus Lighting, Inc. Current regulator apparatus and methods

Also Published As

Publication number Publication date
WO2013067563A2 (de) 2013-05-16
DE112012004690A5 (de) 2014-07-24

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