WO2014111512A3 - Led-anordnung - Google Patents

Led-anordnung Download PDF

Info

Publication number
WO2014111512A3
WO2014111512A3 PCT/EP2014/050885 EP2014050885W WO2014111512A3 WO 2014111512 A3 WO2014111512 A3 WO 2014111512A3 EP 2014050885 W EP2014050885 W EP 2014050885W WO 2014111512 A3 WO2014111512 A3 WO 2014111512A3
Authority
WO
WIPO (PCT)
Prior art keywords
led assembly
led
transistor
series
voltage source
Prior art date
Application number
PCT/EP2014/050885
Other languages
English (en)
French (fr)
Other versions
WO2014111512A2 (de
Inventor
David GAJDOS
Original Assignee
Zumtobel Lighting 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 Zumtobel Lighting Gmbh filed Critical Zumtobel Lighting Gmbh
Priority to EP14701021.9A priority Critical patent/EP2946636A2/de
Publication of WO2014111512A2 publication Critical patent/WO2014111512A2/de
Publication of WO2014111512A3 publication Critical patent/WO2014111512A3/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
    • 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
    • H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices

Abstract

LED-Anordnung, mit mindestens einer LED (1) und einem als Stromsenke ausgebildeten ersten Transistor (2, 3), wobei der erste Transistor (2, 3) in Reihe nach der LED (1) angeordnet ist und die LED-Anordnung an eine erste Spannungsquelle angeschlossen ist und wobei zwischen der LED (1) und dem ersten Transistor (2, 3) ein zweiter Transistor (4) in Reihe angeordnet ist, der an eine zweite Spannungsquelle (5) angeschlossen ist.
PCT/EP2014/050885 2013-01-17 2014-01-17 Led-anordnung WO2014111512A2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14701021.9A EP2946636A2 (de) 2013-01-17 2014-01-17 Led-anordnung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013200644.6A DE102013200644A1 (de) 2013-01-17 2013-01-17 LED-Anordnung
DE102013200644.6 2013-01-17

Publications (2)

Publication Number Publication Date
WO2014111512A2 WO2014111512A2 (de) 2014-07-24
WO2014111512A3 true WO2014111512A3 (de) 2014-09-12

Family

ID=49999920

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/050885 WO2014111512A2 (de) 2013-01-17 2014-01-17 Led-anordnung

Country Status (3)

Country Link
EP (1) EP2946636A2 (de)
DE (1) DE102013200644A1 (de)
WO (1) WO2014111512A2 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007105778A1 (en) * 2006-03-10 2007-09-20 Canon Kabushiki Kaisha Driving circuit of display element and image display apparatus
US20110096055A1 (en) * 2009-10-28 2011-04-28 Li-Wei Lin Light-emitting Diode (LED) Driving Circuit
EP2320711A2 (de) * 2009-11-09 2011-05-11 Toshiba Lighting & Technology Corporation LED-Lichtvorrichtung und Beleuchtungsvorrichtung
DE102011118119A1 (de) * 2010-11-11 2012-05-16 Maxim Integrated Products, Inc. LED-Ansteuerung für Hintergrundbeleuchtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI263960B (en) 2004-06-14 2006-10-11 Richtek Technology Corp A LED (light emitting diode) driver using depletion transistor as current source
US7298101B2 (en) * 2005-02-28 2007-11-20 Panint Electronic Ltd. Continuously variable frequency swinging armature motor and drive
US8324816B2 (en) * 2006-10-18 2012-12-04 Koa Corporation LED driving circuit
WO2008050679A1 (fr) * 2006-10-25 2008-05-02 Panasonic Electric Works Co., Ltd. Circuit d'éclairage de diode électroluminescente et appareil d'éclairage utilisant ledit circuit
JP5127496B2 (ja) * 2008-02-15 2013-01-23 パナソニック株式会社 半導体装置
US8044608B2 (en) * 2008-12-12 2011-10-25 O2Micro, Inc Driving circuit with dimming controller for driving light sources

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007105778A1 (en) * 2006-03-10 2007-09-20 Canon Kabushiki Kaisha Driving circuit of display element and image display apparatus
US20110096055A1 (en) * 2009-10-28 2011-04-28 Li-Wei Lin Light-emitting Diode (LED) Driving Circuit
EP2320711A2 (de) * 2009-11-09 2011-05-11 Toshiba Lighting & Technology Corporation LED-Lichtvorrichtung und Beleuchtungsvorrichtung
DE102011118119A1 (de) * 2010-11-11 2012-05-16 Maxim Integrated Products, Inc. LED-Ansteuerung für Hintergrundbeleuchtung

Also Published As

Publication number Publication date
DE102013200644A1 (de) 2014-07-17
EP2946636A2 (de) 2015-11-25
WO2014111512A2 (de) 2014-07-24

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