WO2014023742A3 - A lighting module having multiple leds and adjustable trimming elements and a method of individually adjusting such trimming elements - Google Patents

A lighting module having multiple leds and adjustable trimming elements and a method of individually adjusting such trimming elements Download PDF

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Publication number
WO2014023742A3
WO2014023742A3 PCT/EP2013/066502 EP2013066502W WO2014023742A3 WO 2014023742 A3 WO2014023742 A3 WO 2014023742A3 EP 2013066502 W EP2013066502 W EP 2013066502W WO 2014023742 A3 WO2014023742 A3 WO 2014023742A3
Authority
WO
WIPO (PCT)
Prior art keywords
trimming elements
lighting module
multiple leds
individually adjusting
adjustable
Prior art date
Application number
PCT/EP2013/066502
Other languages
French (fr)
Other versions
WO2014023742A2 (en
Inventor
Hendrik Paul Wolleswinkel
Fateh Singh
Original Assignee
Spaapen Handelmaatschappij B.V.
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 Spaapen Handelmaatschappij B.V. filed Critical Spaapen Handelmaatschappij B.V.
Publication of WO2014023742A2 publication Critical patent/WO2014023742A2/en
Publication of WO2014023742A3 publication Critical patent/WO2014023742A3/en

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

Landscapes

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

Abstract

The invention relates to a lighting module comprising a plurality of light emitting diodes (LEDs) connected in a circuit comprising a plurality of parallel strings, each said string including at least one LED, wherein at least one trimming element is connected in series with each said string, and wherein a characteristic value of at least some of the trimming elements is individually adjustable to control a current and/or a voltage in the corresponding string.
PCT/EP2013/066502 2012-08-07 2013-08-06 A lighting module having multiple leds and adjustable trimming elements and a method of individually adjusting such trimming elements WO2014023742A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP12005738 2012-08-07
EP12005738.5 2012-08-07
EP12192467.4A EP2699056A3 (en) 2012-08-07 2012-11-13 A lighting module having multiple LEDs and adjustable trimming elements and a method of individually adjusting such trimming elements
EP12192467.4 2012-11-13

Publications (2)

Publication Number Publication Date
WO2014023742A2 WO2014023742A2 (en) 2014-02-13
WO2014023742A3 true WO2014023742A3 (en) 2014-07-17

Family

ID=47010124

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/066502 WO2014023742A2 (en) 2012-08-07 2013-08-06 A lighting module having multiple leds and adjustable trimming elements and a method of individually adjusting such trimming elements

Country Status (2)

Country Link
EP (1) EP2699056A3 (en)
WO (1) WO2014023742A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015000837A1 (en) 2013-06-30 2015-01-08 Spaapen Handelmaatschappij B.V. A method of operating a LED based light source and a lighting device comprising such a LED based light source
DE102013111510A1 (en) * 2013-10-18 2015-04-23 Hella Kgaa Hueck & Co. Circuit and method for driving LEDs
AT517122B1 (en) * 2015-05-08 2018-12-15 Zkw Group Gmbh Method for symmetrizing the branches of a lighting device for vehicles
EP4021148A1 (en) * 2020-12-28 2022-06-29 Marelli Automotive Lighting Italy S.p.A. Lighting circuit assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61115359A (en) * 1984-11-12 1986-06-02 Oki Electric Ind Co Ltd Light-emitting diode array
US20080284408A1 (en) * 2007-05-17 2008-11-20 Active-Semi International, Inc. Sequential calibration of matched current sources
WO2009035948A1 (en) * 2007-09-14 2009-03-19 Leadis Technology, Inc. Programmable led driver
US20110043118A1 (en) * 2009-08-19 2011-02-24 Analog Devices, Inc. Light-emitting diode backlighting systems

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61115359A (en) * 1984-11-12 1986-06-02 Oki Electric Ind Co Ltd Light-emitting diode array
US20080284408A1 (en) * 2007-05-17 2008-11-20 Active-Semi International, Inc. Sequential calibration of matched current sources
WO2009035948A1 (en) * 2007-09-14 2009-03-19 Leadis Technology, Inc. Programmable led driver
US20110043118A1 (en) * 2009-08-19 2011-02-24 Analog Devices, Inc. Light-emitting diode backlighting systems

Also Published As

Publication number Publication date
EP2699056A3 (en) 2014-03-12
WO2014023742A2 (en) 2014-02-13
EP2699056A2 (en) 2014-02-19

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