WO2009095865A3 - Method and circuit arrangement for regulating a led current flowing through a led circuit arrangement, and associated circuit composition and lighting system - Google Patents

Method and circuit arrangement for regulating a led current flowing through a led circuit arrangement, and associated circuit composition and lighting system Download PDF

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Publication number
WO2009095865A3
WO2009095865A3 PCT/IB2009/050342 IB2009050342W WO2009095865A3 WO 2009095865 A3 WO2009095865 A3 WO 2009095865A3 IB 2009050342 W IB2009050342 W IB 2009050342W WO 2009095865 A3 WO2009095865 A3 WO 2009095865A3
Authority
WO
WIPO (PCT)
Prior art keywords
led
circuit arrangement
current
regulating
circuit
Prior art date
Application number
PCT/IB2009/050342
Other languages
French (fr)
Other versions
WO2009095865A2 (en
Inventor
Gian Hoogzaad
Original Assignee
Nxp 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 Nxp B.V. filed Critical Nxp B.V.
Priority to US12/864,803 priority Critical patent/US8258719B2/en
Priority to CN2009801034888A priority patent/CN102037783B/en
Priority to EP09706356.4A priority patent/EP2311298B1/en
Publication of WO2009095865A2 publication Critical patent/WO2009095865A2/en
Publication of WO2009095865A3 publication Critical patent/WO2009095865A3/en
Priority to US13/544,854 priority patent/US8723441B2/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]
    • H05B45/30—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]
    • H05B45/10—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]
    • H05B45/20—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]
    • H05B45/39—Circuits containing inverter bridges
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Dc-Dc Converters (AREA)

Abstract

Method for regulating a LED current (ILED) flowing through a LED circuit arrangement at a mean LED current level. The method includes establishing an oscillating converter current (IL), establishing a first and a second current control indicator representative of a flow of a converter current (IL); regulating a peak and valley current level of the converter current in dependence on the first current control indicator; controlling a converter current period (T) of an oscillation of the converter current in dependence on the second current control indicator to be within a period control range (Tref) and feeding at least part of the converter current to the LED circuit arrangement. The invention also provides a circuit arrangement for regulating a LED current using the method, a LED driver IC using the circuit arrangement, a circuit composition with at least one LED and the circuit arrangement, and a lighting system with the circuit composition.
PCT/IB2009/050342 2008-01-30 2009-01-28 Method and circuit arrangement for regulating a led current flowing through a led circuit arrangement, and associated circuit composition and lighting system WO2009095865A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/864,803 US8258719B2 (en) 2008-01-30 2009-01-28 Method and circuit arrangement for regulating a LED current flowing through a LED circuit arrangement, and associated circuit composition and lighting system
CN2009801034888A CN102037783B (en) 2008-01-30 2009-01-28 Method and circuit arrangement for regulating LED current flowing through LED circuit arrangement, and associated circuit composition and lighting system
EP09706356.4A EP2311298B1 (en) 2008-01-30 2009-01-28 Method and circuit arrangement for regulating a led current flowing through a led circuit arrangement, and associated circuit composition and lighting system
US13/544,854 US8723441B2 (en) 2008-01-30 2012-07-09 Method and circuit arrangement for regulating a LED current flowing through a LED circuit arrangement, and associated circuit composition and lighting system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08101113 2008-01-30
EP08101113.2 2008-01-30

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/864,803 A-371-Of-International US8258719B2 (en) 2008-01-30 2009-01-28 Method and circuit arrangement for regulating a LED current flowing through a LED circuit arrangement, and associated circuit composition and lighting system
US13/544,854 Division US8723441B2 (en) 2008-01-30 2012-07-09 Method and circuit arrangement for regulating a LED current flowing through a LED circuit arrangement, and associated circuit composition and lighting system

Publications (2)

Publication Number Publication Date
WO2009095865A2 WO2009095865A2 (en) 2009-08-06
WO2009095865A3 true WO2009095865A3 (en) 2011-02-24

Family

ID=40821781

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/050342 WO2009095865A2 (en) 2008-01-30 2009-01-28 Method and circuit arrangement for regulating a led current flowing through a led circuit arrangement, and associated circuit composition and lighting system

Country Status (4)

Country Link
US (2) US8258719B2 (en)
EP (1) EP2311298B1 (en)
CN (1) CN102037783B (en)
WO (1) WO2009095865A2 (en)

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CN101779523B (en) * 2007-07-23 2012-05-30 Nxp股份有限公司 Self-powered led bypass-switch configuration
EP2311298B1 (en) * 2008-01-30 2018-12-19 Nxp B.V. Method and circuit arrangement for regulating a led current flowing through a led circuit arrangement, and associated circuit composition and lighting system
WO2009138908A1 (en) * 2008-05-13 2009-11-19 Nxp B.V. Method and circuit arrangement for cycle-by-cycle control of a led current flowing through a led circuit arrangement, and associated circuit composition and lighting system
WO2010019030A1 (en) * 2008-08-15 2010-02-18 Eldolab Holding B.V. Gripper for a manipulator
US8957601B2 (en) 2008-09-18 2015-02-17 Lumastream Canada Ulc Configurable LED driver/dimmer for solid state lighting applications
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US8410717B2 (en) * 2009-06-04 2013-04-02 Point Somee Limited Liability Company Apparatus, method and system for providing AC line power to lighting devices
US8569956B2 (en) 2009-06-04 2013-10-29 Point Somee Limited Liability Company Apparatus, method and system for providing AC line power to lighting devices
US9713211B2 (en) 2009-09-24 2017-07-18 Cree, Inc. Solid state lighting apparatus with controllable bypass circuits and methods of operation thereof
US10264637B2 (en) 2009-09-24 2019-04-16 Cree, Inc. Solid state lighting apparatus with compensation bypass circuits and methods of operation thereof
DE102010008275B4 (en) * 2010-02-17 2019-10-10 Continental Automotive Gmbh Device for powering several LED units
DE102010002568A1 (en) * 2010-03-04 2011-09-08 Tridonic Ag Flicker avoidance with LEDs
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KR20120067035A (en) * 2010-12-15 2012-06-25 삼성엘이디 주식회사 Apparatus of driving light emitting diode using erasable programmable logic device chip
DE102011007261A1 (en) 2011-04-13 2012-10-18 Continental Automotive Gmbh transducer means
US9510413B2 (en) 2011-07-28 2016-11-29 Cree, Inc. Solid state lighting apparatus and methods of forming
US8742671B2 (en) 2011-07-28 2014-06-03 Cree, Inc. Solid state lighting apparatus and methods using integrated driver circuitry
US9277605B2 (en) 2011-09-16 2016-03-01 Cree, Inc. Solid-state lighting apparatus and methods using current diversion controlled by lighting device bias states
US8791641B2 (en) 2011-09-16 2014-07-29 Cree, Inc. Solid-state lighting apparatus and methods using energy storage
ES2535832T3 (en) * 2011-09-19 2015-05-18 Koninklijke Philips N.V. LED trigger
DE102011122256A1 (en) * 2011-12-23 2013-06-27 Diehl Aerospace Gmbh Device for controlling a lighting device and method for controlling a lighting device
US9480108B2 (en) * 2012-04-18 2016-10-25 Axlen, Inc. Solid-state light source
US9374858B2 (en) 2012-05-21 2016-06-21 Cree, Inc. Solid-state lighting apparatus and methods using switched energy storage
DE102012209779A1 (en) * 2012-06-12 2013-12-12 Osram Gmbh Circuit for controlling semiconductor light emitting elements e.g. LEDs, of lamp, has electronic switches controlled by microcontroller, and semiconductor luminous elements switched in series in different combinations by switches
US8933647B2 (en) * 2012-07-27 2015-01-13 Infineon Technologies Ag LED controller with current-ripple control
EP2741578B1 (en) * 2012-12-07 2017-06-07 Nxp B.V. LED current and dimming control using hysteresis comparatoradjustment of hysteresis upper and lower threshold levels
CN203072200U (en) * 2012-12-12 2013-07-17 欧司朗股份有限公司 Current compensation device and illumination equipment having the same
CN103310753A (en) * 2013-06-24 2013-09-18 深圳市华星光电技术有限公司 Liquid crystal display device and LED (light emitting diode) backlight thereof
EP2911475A1 (en) 2014-02-24 2015-08-26 Dialog Semiconductor GmbH PDM modulation of LED current
KR102174939B1 (en) * 2014-07-22 2020-11-06 삼성디스플레이 주식회사 Operation method of backlight unit and display device comprising the backlight unit
CN104600983B (en) * 2014-12-24 2017-07-18 成都芯源系统有限公司 Step-up and step-down switch power converter, control circuit and mode switching control unit
DE102015202245B4 (en) * 2015-02-09 2024-09-19 Tridonic Gmbh & Co Kg Step-down converter with frequency modulated switch control
US9526137B1 (en) 2015-06-29 2016-12-20 Nxp B.V. Low-noise current regulation circuits
WO2017022633A1 (en) * 2015-08-04 2017-02-09 株式会社小糸製作所 Lighting tool for vehicle and light source lighting circuit
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CN118433975A (en) * 2024-07-04 2024-08-02 猎光照明科技(深圳)有限公司 Lighting device control method based on Bluetooth network bridge

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Also Published As

Publication number Publication date
EP2311298A2 (en) 2011-04-20
US20100315016A1 (en) 2010-12-16
EP2311298B1 (en) 2018-12-19
US8258719B2 (en) 2012-09-04
CN102037783A (en) 2011-04-27
CN102037783B (en) 2013-05-08
US8723441B2 (en) 2014-05-13
WO2009095865A2 (en) 2009-08-06
US20130175929A1 (en) 2013-07-11

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