DE112009003815A5 - METHOD AND DEVICE FOR OPERATING GROUPS OF LEDS BY PWM - Google Patents

METHOD AND DEVICE FOR OPERATING GROUPS OF LEDS BY PWM Download PDF

Info

Publication number
DE112009003815A5
DE112009003815A5 DE112009003815T DE112009003815T DE112009003815A5 DE 112009003815 A5 DE112009003815 A5 DE 112009003815A5 DE 112009003815 T DE112009003815 T DE 112009003815T DE 112009003815 T DE112009003815 T DE 112009003815T DE 112009003815 A5 DE112009003815 A5 DE 112009003815A5
Authority
DE
Germany
Prior art keywords
pwm
leds
operating groups
groups
operating
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.)
Withdrawn
Application number
DE112009003815T
Other languages
German (de)
Inventor
Michael Zimmermann
Dominique Combet
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.)
Tridonic AG
Original Assignee
Tridonic AG
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 AG filed Critical Tridonic AG
Publication of DE112009003815A5 publication Critical patent/DE112009003815A5/en
Withdrawn legal-status Critical Current

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]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback
    • 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]
    • H05B45/20—Controlling the colour 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]
    • H05B45/30—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
DE112009003815T 2008-12-23 2009-12-21 METHOD AND DEVICE FOR OPERATING GROUPS OF LEDS BY PWM Withdrawn DE112009003815A5 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AT7462008 2008-12-23
ATGM746/2008 2008-12-23
DE102009005819A DE102009005819A1 (en) 2008-12-23 2009-01-22 Method and device for operating LEDs
DE102009005819.2 2009-01-22
PCT/EP2009/067631 WO2010081613A1 (en) 2008-12-23 2009-12-21 Processor and device for operating groups of leds using pwm

Publications (1)

Publication Number Publication Date
DE112009003815A5 true DE112009003815A5 (en) 2012-08-02

Family

ID=42220959

Family Applications (2)

Application Number Title Priority Date Filing Date
DE102009005819A Withdrawn DE102009005819A1 (en) 2008-12-23 2009-01-22 Method and device for operating LEDs
DE112009003815T Withdrawn DE112009003815A5 (en) 2008-12-23 2009-12-21 METHOD AND DEVICE FOR OPERATING GROUPS OF LEDS BY PWM

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE102009005819A Withdrawn DE102009005819A1 (en) 2008-12-23 2009-01-22 Method and device for operating LEDs

Country Status (3)

Country Link
EP (1) EP2368407B1 (en)
DE (2) DE102009005819A1 (en)
WO (1) WO2010081613A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994018809A1 (en) 1993-02-11 1994-08-18 Phares Louis A Controlled lighting system
US6016038A (en) 1997-08-26 2000-01-18 Color Kinetics, Inc. Multicolored LED lighting method and apparatus
TWI277225B (en) * 2005-08-03 2007-03-21 Beyond Innovation Tech Co Ltd Apparatus of light source and adjustable control circuit for LEDs
DE102005049579A1 (en) * 2005-10-17 2007-04-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Light source that emits mixed-color light, and methods for controlling the color location of such a light source
US20080048582A1 (en) * 2006-08-28 2008-02-28 Robinson Shane P Pwm method and apparatus, and light source driven thereby
US7948468B2 (en) * 2007-02-23 2011-05-24 The Regents Of The University Of Colorado Systems and methods for driving multiple solid-state light sources

Also Published As

Publication number Publication date
EP2368407B1 (en) 2014-03-19
WO2010081613A1 (en) 2010-07-22
DE102009005819A1 (en) 2010-07-01
EP2368407A1 (en) 2011-09-28

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Legal Events

Date Code Title Description
R005 Application deemed withdrawn due to failure to request examination