WO2002043443A3 - Led-driver circuit - Google Patents

Led-driver circuit Download PDF

Info

Publication number
WO2002043443A3
WO2002043443A3 PCT/EP2001/013325 EP0113325W WO0243443A3 WO 2002043443 A3 WO2002043443 A3 WO 2002043443A3 EP 0113325 W EP0113325 W EP 0113325W WO 0243443 A3 WO0243443 A3 WO 0243443A3
Authority
WO
WIPO (PCT)
Prior art keywords
emitting
light
coupled
circuit
current
Prior art date
Application number
PCT/EP2001/013325
Other languages
French (fr)
Other versions
WO2002043443A2 (en
Inventor
Chin Chang
Subramanian Muthu
Gert W Bruning
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Priority to JP2002545033A priority Critical patent/JP2004515062A/en
Priority to EP01997973A priority patent/EP1340410A2/en
Publication of WO2002043443A2 publication Critical patent/WO2002043443A2/en
Publication of WO2002043443A3 publication Critical patent/WO2002043443A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33561—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having more than one ouput with independent control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • 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]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/34—Snubber circuits
    • H02M1/342—Active non-dissipative snubbers
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Abstract

A white light-emitting-diode array driver circuit with a multiple output flyback or forward converter with output current mode control. The circuit comprises a power supply source and a transformer. The transformer has a primary winding coupled to, and configured to receive current from, the power supply, and a plurality of secondary windings coupled to the primary winding. The circuit also comprises a plurality of light-emitting-diode arrays, wherein each light-emitting-diode array is coupled to one of the secondary windings. A main controller is configured to control a flow of current to the primary transformer winding. The circuit also comprises a plurality of secondary controllers, each of which are coupled to a respective one of the light-emitting-diode arrays. In addition, each of the secondary controllers are configured to control a flow of current to its corresponding light-emitting-diode array.
PCT/EP2001/013325 2000-11-21 2001-11-15 Led-driver circuit WO2002043443A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2002545033A JP2004515062A (en) 2000-11-21 2001-11-15 LED drive circuit
EP01997973A EP1340410A2 (en) 2000-11-21 2001-11-15 Led-driver circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/717,969 US6369525B1 (en) 2000-11-21 2000-11-21 White light-emitting-diode lamp driver based on multiple output converter with output current mode control
US09/717,969 2000-11-21

Publications (2)

Publication Number Publication Date
WO2002043443A2 WO2002043443A2 (en) 2002-05-30
WO2002043443A3 true WO2002043443A3 (en) 2002-10-31

Family

ID=24884262

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/013325 WO2002043443A2 (en) 2000-11-21 2001-11-15 Led-driver circuit

Country Status (5)

Country Link
US (1) US6369525B1 (en)
EP (1) EP1340410A2 (en)
JP (1) JP2004515062A (en)
CN (1) CN1418452A (en)
WO (1) WO2002043443A2 (en)

Families Citing this family (152)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6806659B1 (en) 1997-08-26 2004-10-19 Color Kinetics, Incorporated Multicolored LED lighting method and apparatus
US20030133292A1 (en) 1999-11-18 2003-07-17 Mueller George G. Methods and apparatus for generating and modulating white light illumination conditions
US7014336B1 (en) * 1999-11-18 2006-03-21 Color Kinetics Incorporated Systems and methods for generating and modulating illumination conditions
US6720745B2 (en) * 1997-08-26 2004-04-13 Color Kinetics, Incorporated Data delivery track
US7202613B2 (en) * 2001-05-30 2007-04-10 Color Kinetics Incorporated Controlled lighting methods and apparatus
CN2435876Y (en) * 2000-08-17 2001-06-20 伊博电源（杭州）有限公司 Multiple input adapter power supply
US7303300B2 (en) * 2000-09-27 2007-12-04 Color Kinetics Incorporated Methods and systems for illuminating household products
US7038399B2 (en) * 2001-03-13 2006-05-02 Color Kinetics Incorporated Methods and apparatus for providing power to lighting devices
US6697402B2 (en) * 2001-07-19 2004-02-24 Analog Modules, Inc. High-power pulsed laser diode driver
US6621235B2 (en) * 2001-08-03 2003-09-16 Koninklijke Philips Electronics N.V. Integrated LED driving device with current sharing for multiple LED strings
WO2003015067A1 (en) 2001-08-09 2003-02-20 Guzman, Robert, G. Led light apparatus with instantly adjustable color and intensity
DE10139445A1 (en) * 2001-08-10 2003-02-20 Philips Corp Intellectual Pty power Supply
US7178971B2 (en) * 2001-12-14 2007-02-20 The University Of Hong Kong High efficiency driver for color light emitting diodes (LED)
US20030189290A1 (en) * 2002-01-22 2003-10-09 Moody Ernest W. Video poker games
DE60325042D1 (en) 2002-05-09 2009-01-15 Philips Solid State Lighting LED DIMMER CONTROL
US7358679B2 (en) * 2002-05-09 2008-04-15 Philips Solid-State Lighting Solutions, Inc. Dimmable LED-based MR16 lighting apparatus and methods
JP3745310B2 (en) 2002-05-31 2006-02-15 ソニー株式会社 LIGHT EMITTING DEVICE DRIVE DEVICE AND PORTABLE DEVICE USING THE SAME
US7023543B2 (en) * 2002-08-01 2006-04-04 Cunningham David W Method for controlling the luminous flux spectrum of a lighting fixture
US6735094B2 (en) * 2002-08-15 2004-05-11 General Electric Company Low-noise multi-output power supply circuit featuring efficient linear regulators and method of design
US7300192B2 (en) * 2002-10-03 2007-11-27 Color Kinetics Incorporated Methods and apparatus for illuminating environments
US7004602B2 (en) * 2003-02-25 2006-02-28 Ryan Waters LED light apparatus and methodology
US6969180B2 (en) 2003-02-25 2005-11-29 Ryan Waters LED light apparatus and methodology
US7178941B2 (en) * 2003-05-05 2007-02-20 Color Kinetics Incorporated Lighting methods and systems
DE10321234A1 (en) * 2003-05-12 2004-12-16 Minebea Co., Ltd. DC-DC converter with one input switching stage and several output channels
JP4128549B2 (en) * 2004-01-22 2008-07-30 株式会社小糸製作所 Vehicle lighting
WO2005089309A2 (en) 2004-03-15 2005-09-29 Color Kinetics Incorporated Power control methods and apparatus
JP2005348592A (en) * 2004-06-07 2005-12-15 Koito Mfg Co Ltd Power supply equipment and vehicular-type lighting fixture
WO2006023149A2 (en) * 2004-07-08 2006-03-02 Color Kinetics Incorporated Led package methods and systems
US7542257B2 (en) 2004-09-10 2009-06-02 Philips Solid-State Lighting Solutions, Inc. Power control methods and apparatus for variable loads
FI20050094A0 (en) * 2005-01-28 2005-01-28 Vacon Oyj power Source
US7400064B2 (en) * 2005-04-22 2008-07-15 Texas Instruments Incorporated DC/DC power converter
TWM295720U (en) * 2005-08-09 2006-08-11 Wei-Chiang Lee LED full-color display lamp
EP1935085B1 (en) * 2005-10-05 2012-03-28 Koninklijke Philips Electronics N.V. Driver circuit arrangement
CN100490597C (en) * 2005-10-27 2009-05-20 鸿富锦精密工业（深圳）有限公司 Drive circuit of power supply indicating lamp
US7923943B2 (en) * 2006-01-10 2011-04-12 Microsemi Corp.—Analog Mixed Signal Group Ltd. Secondary side post regulation for LED backlighting
PT1984667T (en) * 2006-02-10 2018-01-03 Philips Lighting North America Corp Methods and apparatus for high power factor controlled power delivery using a single switching stage per load
EP1858301A1 (en) * 2006-05-16 2007-11-21 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH LED lighting system and method for producing a predetermined colour sequence
EP1868284B1 (en) * 2006-06-15 2013-07-24 OSRAM GmbH Driver arrangement for LED lamps
US7973496B2 (en) * 2006-09-07 2011-07-05 Koninklijke Philips Electronics N.V. Resonant driver with low-voltage secondary side control for high power LED lighting
ATE500710T1 (en) * 2006-10-06 2011-03-15 Koninkl Philips Electronics Nv POWER SUPPLY DEVICE FOR LIGHTING ELEMENTS AND METHOD FOR SUPPLYING POWER TO THE LIGHTING ELEMENTS
US7667408B2 (en) * 2007-03-12 2010-02-23 Cirrus Logic, Inc. Lighting system with lighting dimmer output mapping
US8076920B1 (en) 2007-03-12 2011-12-13 Cirrus Logic, Inc. Switching power converter and control system
US8723438B2 (en) * 2007-03-12 2014-05-13 Cirrus Logic, Inc. Switch power converter control with spread spectrum based electromagnetic interference reduction
US7852017B1 (en) * 2007-03-12 2010-12-14 Cirrus Logic, Inc. Ballast for light emitting diode light sources
US7554473B2 (en) 2007-05-02 2009-06-30 Cirrus Logic, Inc. Control system using a nonlinear delta-sigma modulator with nonlinear process modeling
DE602007014344D1 (en) 2007-06-06 2011-06-16 Suekrue Ertike Multi-output flow transducer with independent, precise control
AT515913B1 (en) * 2007-06-15 2016-01-15 Tridonic Gmbh & Co Kg OPERATING DEVICE FOR OPERATING A LIGHT SOURCE, ESPECIALLY LED
US8102127B2 (en) 2007-06-24 2012-01-24 Cirrus Logic, Inc. Hybrid gas discharge lamp-LED lighting system
CN102318440B (en) * 2007-08-24 2015-09-09 塞瑞斯逻辑公司 Many LED control
EP2218305A1 (en) * 2007-11-07 2010-08-18 Koninklijke Philips Electronics N.V. Power supply circuit
US8118447B2 (en) 2007-12-20 2012-02-21 Altair Engineering, Inc. LED lighting apparatus with swivel connection
US7712918B2 (en) 2007-12-21 2010-05-11 Altair Engineering , Inc. Light distribution using a light emitting diode assembly
IL188348A0 (en) * 2007-12-24 2008-11-03 Lightech Electronics Ind Ltd Controller and method for controlling an intensity of a light emitting diode (led) using a conventional ac dimmer
US7906868B2 (en) * 2008-01-15 2011-03-15 Microsemi Corporation Fine tuned multiple output converter
US8576589B2 (en) 2008-01-30 2013-11-05 Cirrus Logic, Inc. Switch state controller with a sense current generated operating voltage
CN102017381B (en) 2008-04-25 2014-07-16 动力研究电子股份有限公司 Power converter
US8360599B2 (en) 2008-05-23 2013-01-29 Ilumisys, Inc. Electric shock resistant L.E.D. based light
JP5006840B2 (en) * 2008-05-29 2012-08-22 三菱電機株式会社 Light emitting device and lighting device
US7976196B2 (en) 2008-07-09 2011-07-12 Altair Engineering, Inc. Method of forming LED-based light and resulting LED-based light
US8212491B2 (en) 2008-07-25 2012-07-03 Cirrus Logic, Inc. Switching power converter control with triac-based leading edge dimmer compatibility
US8344707B2 (en) * 2008-07-25 2013-01-01 Cirrus Logic, Inc. Current sensing in a switching power converter
US8279628B2 (en) 2008-07-25 2012-10-02 Cirrus Logic, Inc. Audible noise suppression in a resonant switching power converter
US7946729B2 (en) 2008-07-31 2011-05-24 Altair Engineering, Inc. Fluorescent tube replacement having longitudinally oriented LEDs
JP4586905B2 (en) * 2008-08-13 2010-11-24 ソニー株式会社 Light emitting diode drive device
US8729870B2 (en) 2008-08-15 2014-05-20 Analog Modules, Inc. Biphase laser diode driver and method
US8207711B2 (en) * 2008-08-15 2012-06-26 Analog Modules, Inc. Biphase laser diode driver and method
US8674626B2 (en) 2008-09-02 2014-03-18 Ilumisys, Inc. LED lamp failure alerting system
US8242704B2 (en) 2008-09-09 2012-08-14 Point Somee Limited Liability Company Apparatus, method and system for providing power to solid state lighting
US8256924B2 (en) 2008-09-15 2012-09-04 Ilumisys, Inc. LED-based light having rapidly oscillating LEDs
US8222872B1 (en) 2008-09-30 2012-07-17 Cirrus Logic, Inc. Switching power converter with selectable mode auxiliary power supply
JP5006856B2 (en) * 2008-10-07 2012-08-22 三菱電機株式会社 Light emitting device and lighting device
US8444292B2 (en) 2008-10-24 2013-05-21 Ilumisys, Inc. End cap substitute for LED-based tube replacement light
US8653984B2 (en) 2008-10-24 2014-02-18 Ilumisys, Inc. Integration of LED lighting control with emergency notification systems
US7938562B2 (en) 2008-10-24 2011-05-10 Altair Engineering, Inc. Lighting including integral communication apparatus
US8901823B2 (en) 2008-10-24 2014-12-02 Ilumisys, Inc. Light and light sensor
US8324817B2 (en) 2008-10-24 2012-12-04 Ilumisys, Inc. Light and light sensor
US8214084B2 (en) 2008-10-24 2012-07-03 Ilumisys, Inc. Integration of LED lighting with building controls
DE102008055862A1 (en) * 2008-11-05 2010-05-06 Tridonicatco Gmbh & Co. Kg Bulb operating device with potential separation
US7944155B2 (en) * 2008-11-18 2011-05-17 General Electric Company LED driver with single inverter circuit with isolated multi-channel outputs
US8288954B2 (en) * 2008-12-07 2012-10-16 Cirrus Logic, Inc. Primary-side based control of secondary-side current for a transformer
US8362707B2 (en) * 2008-12-12 2013-01-29 Cirrus Logic, Inc. Light emitting diode based lighting system with time division ambient light feedback response
US8299722B2 (en) * 2008-12-12 2012-10-30 Cirrus Logic, Inc. Time division light output sensing and brightness adjustment for different spectra of light emitting diodes
US8044609B2 (en) * 2008-12-31 2011-10-25 02Micro Inc Circuits and methods for controlling LCD backlights
US8556452B2 (en) 2009-01-15 2013-10-15 Ilumisys, Inc. LED lens
US8362710B2 (en) 2009-01-21 2013-01-29 Ilumisys, Inc. Direct AC-to-DC converter for passive component minimization and universal operation of LED arrays
US8664880B2 (en) 2009-01-21 2014-03-04 Ilumisys, Inc. Ballast/line detection circuit for fluorescent replacement lamps
CN101505563A (en) * 2009-02-10 2009-08-12 黄华南 LED driving circuit
US8183870B1 (en) * 2009-02-12 2012-05-22 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Battery system and method for sensing and balancing the charge state of battery cells
EP2401807B1 (en) * 2009-02-26 2018-04-25 Philips Lighting Holding B.V. Resonant converter
US8680771B2 (en) 2009-04-30 2014-03-25 Cirrus Logic, Inc. Controller customization system with phase cut angle communication customization data encoding
US8482223B2 (en) 2009-04-30 2013-07-09 Cirrus Logic, Inc. Calibration of lamps
US8330381B2 (en) 2009-05-14 2012-12-11 Ilumisys, Inc. Electronic circuit for DC conversion of fluorescent lighting ballast
US8299695B2 (en) 2009-06-02 2012-10-30 Ilumisys, Inc. Screw-in LED bulb comprising a base having outwardly projecting nodes
EP2446715A4 (en) 2009-06-23 2013-09-11 Ilumisys Inc Illumination device including leds and a switching power control system
CN101932155B (en) * 2009-06-24 2013-04-17 台达电子工业股份有限公司 Power supply circuit of light-emitting diode
US8963535B1 (en) 2009-06-30 2015-02-24 Cirrus Logic, Inc. Switch controlled current sensing using a hall effect sensor
US8212493B2 (en) * 2009-06-30 2012-07-03 Cirrus Logic, Inc. Low energy transfer mode for auxiliary power supply operation in a cascaded switching power converter
US8248145B2 (en) 2009-06-30 2012-08-21 Cirrus Logic, Inc. Cascode configured switching using at least one low breakdown voltage internal, integrated circuit switch to control at least one high breakdown voltage external switch
US8198874B2 (en) 2009-06-30 2012-06-12 Cirrus Logic, Inc. Switching power converter with current sensing transformer auxiliary power supply
US20110032731A1 (en) * 2009-08-04 2011-02-10 Asic Advantage Inc. Multiple independently regulated parameters using a single magnetic circuit element
TWI538553B (en) * 2009-08-25 2016-06-11 皇家飛利浦電子股份有限公司 Multichannel lighting unit and driver for supplying current to light sources in multichannel lighting unit
US9155174B2 (en) 2009-09-30 2015-10-06 Cirrus Logic, Inc. Phase control dimming compatible lighting systems
US9178415B1 (en) 2009-10-15 2015-11-03 Cirrus Logic, Inc. Inductor over-current protection using a volt-second value representing an input voltage to a switching power converter
US8654483B2 (en) * 2009-11-09 2014-02-18 Cirrus Logic, Inc. Power system having voltage-based monitoring for over current protection
US8164275B2 (en) * 2009-12-15 2012-04-24 Tdk-Lambda Americas Inc. Drive circuit for high-brightness light emitting diodes
SE534808C2 (en) * 2010-02-19 2011-12-27 Nordic Light Ab A method for controlling and controlling the output current of an electronic drive system containing a switched power unit of flyback type as well as an electronic drive system according to the procedure.
WO2011119958A1 (en) 2010-03-26 2011-09-29 Altair Engineering, Inc. Inside-out led bulb
EP2553316B8 (en) 2010-03-26 2015-07-08 iLumisys, Inc. Led light tube with dual sided light distribution
EP2553320A4 (en) * 2010-03-26 2014-06-18 Ilumisys Inc Led light with thermoelectric generator
KR101101473B1 (en) * 2010-04-22 2012-01-03 삼성전기주식회사 Multi power supply for driving light emitting diode
US8454193B2 (en) 2010-07-08 2013-06-04 Ilumisys, Inc. Independent modules for LED fluorescent light tube replacement
EP2593714A2 (en) 2010-07-12 2013-05-22 iLumisys, Inc. Circuit board mount for led light tube
US8536799B1 (en) 2010-07-30 2013-09-17 Cirrus Logic, Inc. Dimmer detection
US8569972B2 (en) 2010-08-17 2013-10-29 Cirrus Logic, Inc. Dimmer output emulation
US9173261B2 (en) 2010-07-30 2015-10-27 Wesley L. Mokry Secondary-side alternating energy transfer control with inverted reference and LED-derived power supply
US8729811B2 (en) 2010-07-30 2014-05-20 Cirrus Logic, Inc. Dimming multiple lighting devices by alternating energy transfer from a magnetic storage element
US8523394B2 (en) 2010-10-29 2013-09-03 Ilumisys, Inc. Mechanisms for reducing risk of shock during installation of light tube
US8870415B2 (en) 2010-12-09 2014-10-28 Ilumisys, Inc. LED fluorescent tube replacement light with reduced shock hazard
US8912734B2 (en) 2011-03-24 2014-12-16 Cirrus Logic, Inc. Color mixing of electronic light sources with correlation between phase-cut dimmer angle and predetermined black body radiation function
US8823289B2 (en) 2011-03-24 2014-09-02 Cirrus Logic, Inc. Color coordination of electronic light sources with dimming and temperature responsiveness
US20120267953A1 (en) * 2011-04-19 2012-10-25 Doyle Kevin A Apparatus and method for controlling and supplying power to electrical devices in high risk environments
US9072171B2 (en) 2011-08-24 2015-06-30 Ilumisys, Inc. Circuit board mount for LED light
SG189603A1 (en) 2011-11-04 2013-05-31 Opulent Electronics Internat Pte Ltd System for driving a plurality of high powered led units
EP2786639B1 (en) 2011-11-28 2017-01-04 Marvell World Trade Ltd. Color mixing systems with buck-boost and flyback topologies
FR2983654B1 (en) * 2011-12-05 2014-01-10 Airbus Operations Sas INTERFACE DEVICE BETWEEN AN ELECTRICAL NETWORK AND CONSUMER SYSTEMS
US9806623B2 (en) * 2011-12-09 2017-10-31 Telefonaktiebolaget Lm Ericsson (Publ) DC-DC converter with multiple outputs
WO2013090852A2 (en) 2011-12-14 2013-06-20 Cirrus Logic, Inc. Adaptive current control timing and responsive current control for interfacing with a dimmer
US9184518B2 (en) 2012-03-02 2015-11-10 Ilumisys, Inc. Electrical connector header for an LED-based light
JP5984501B2 (en) * 2012-05-15 2016-09-06 三菱電機株式会社 Projection display
US9204503B1 (en) 2012-07-03 2015-12-01 Philips International, B.V. Systems and methods for dimming multiple lighting devices by alternating transfer from a magnetic storage element
WO2014008463A1 (en) 2012-07-06 2014-01-09 Ilumisys, Inc. Power supply assembly for led-based light tube
US9271367B2 (en) 2012-07-09 2016-02-23 Ilumisys, Inc. System and method for controlling operation of an LED-based light
US9204504B2 (en) 2012-09-17 2015-12-01 Energy Focus, Inc. LED lamp system
US9285084B2 (en) 2013-03-14 2016-03-15 Ilumisys, Inc. Diffusers for LED-based lights
US9491815B2 (en) 2013-10-02 2016-11-08 Microsemi Corporation LED luminaire driving circuit and method
US9267650B2 (en) 2013-10-09 2016-02-23 Ilumisys, Inc. Lens for an LED-based light
WO2015112437A1 (en) 2014-01-22 2015-07-30 Ilumisys, Inc. Led-based light with addressed leds
US9161401B1 (en) 2014-03-20 2015-10-13 Cirrus Logic, Inc. LED (light-emitting diode) string derived controller power supply
US9510400B2 (en) 2014-05-13 2016-11-29 Ilumisys, Inc. User input systems for an LED-based light
US9585207B2 (en) * 2014-07-11 2017-02-28 General Electric Company System and method for achieving precise regulation of multiple outputs in a multi-resonant LED driver stage
CN104507198B (en) * 2014-11-12 2017-11-07 瑞芙贝（武汉）光电科技发展有限公司 Active clamping forward, flyback recommend integrated lamp controller
US9622306B2 (en) 2015-01-21 2017-04-11 City University Of Hong Kong LED lighting circuit
US10161568B2 (en) 2015-06-01 2018-12-25 Ilumisys, Inc. LED-based light with canted outer walls
WO2018038681A1 (en) * 2016-08-22 2018-03-01 National University Of Singapore A multi-channel driver circuit and method for leds
US10008948B1 (en) 2016-12-26 2018-06-26 Nxp B.V. Active clamp circuit for switched mode power supplies
DE102017223405A1 (en) * 2017-10-06 2019-04-11 Tridonic Gmbh & Co Kg Operating circuit for an LED light source
USD857979S1 (en) 2018-03-05 2019-08-27 Intellytech Llc Foldable light emitting mat
USD857980S1 (en) 2018-04-05 2019-08-27 Intellytech Llc Foldable light emitting mat
WO2020010472A1 (en) * 2018-07-13 2020-01-16 10644137 Canada Inc. Apparatus and methods for high power led lights
JP2020018037A (en) 2018-07-23 2020-01-30 株式会社デンソー Power element driving device
US10517156B1 (en) 2019-01-25 2019-12-24 Lumileds Holding B.V. Hybrid driving scheme for RGB color tuning
US10652962B1 (en) * 2019-06-27 2020-05-12 Lumileds Llc Dim-to-warm LED circuit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06327248A (en) * 1993-05-11 1994-11-25 Nippon Electric Ind Co Ltd One-transistor forward type multiple output converter
DE19732828A1 (en) * 1997-07-30 1999-02-04 Siemens Ag PWM address circuit for light-emitting diode array
WO1999007188A2 (en) * 1997-08-01 1999-02-11 Koninklijke Philips Electronics N.V. Circuit arrangement
EP0939483A2 (en) * 1998-02-25 1999-09-01 Lucent Technologies Inc. Secondary side post regulator and multiple output power supply employing the same
US6078509A (en) * 1998-11-16 2000-06-20 Lucent Technologies Inc., Multiple output flyback converter having improved cross-regulation and method of operation thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675575A (en) * 1984-07-13 1987-06-23 E & G Enterprises Light-emitting diode assemblies and systems therefore
US5659237A (en) * 1995-09-28 1997-08-19 Wisconsin Alumni Research Foundation Battery charging using a transformer with a single primary winding and plural secondary windings
US5661645A (en) * 1996-06-27 1997-08-26 Hochstein; Peter A. Power supply for light emitting diode array
JPH1023354A (en) * 1996-06-29 1998-01-23 Matsushita Electric Ind Co Ltd Power supply device for television receiver
US6016038A (en) * 1997-08-26 2000-01-18 Color Kinetics, Inc. Multicolored LED lighting method and apparatus
US5949658A (en) 1997-12-01 1999-09-07 Lucent Technologies, Inc. Efficiency multiple output DC/DC converter
US5828558A (en) * 1998-02-11 1998-10-27 Powerdsine, Ltd. PWN controller use with open loop flyback type DC to AC converter
US6149283A (en) * 1998-12-09 2000-11-21 Rensselaer Polytechnic Institute (Rpi) LED lamp with reflector and multicolor adjuster
US6285140B1 (en) * 1999-04-21 2001-09-04 Pharos Innovations Inc. Variable-effect lighting system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06327248A (en) * 1993-05-11 1994-11-25 Nippon Electric Ind Co Ltd One-transistor forward type multiple output converter
DE19732828A1 (en) * 1997-07-30 1999-02-04 Siemens Ag PWM address circuit for light-emitting diode array
WO1999007188A2 (en) * 1997-08-01 1999-02-11 Koninklijke Philips Electronics N.V. Circuit arrangement
EP0939483A2 (en) * 1998-02-25 1999-09-01 Lucent Technologies Inc. Secondary side post regulator and multiple output power supply employing the same
US6078509A (en) * 1998-11-16 2000-06-20 Lucent Technologies Inc., Multiple output flyback converter having improved cross-regulation and method of operation thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ECKOLD F: "LEUCHTDIODEN RICHTIG EINGESETZT CORRECT APPLICATIONS OF LIGHT EMITTING DIODES", E. ELEKTRONIK-TECHNOLOGIE, ELEKTRONIK-ANWENDUNGEN, ELEKTRONIK-MARKETING, KONRADIN VERLAG, LEINFELDEN-ECHTERDINGEN, DE, vol. 5, no. 4, March 1986 (1986-03-01), pages 49 - 54, XP001086420, ISSN: 0174-7452 *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 02 31 March 1995 (1995-03-31) *

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EP1340410A2 (en) 2003-09-03
WO2002043443A2 (en) 2002-05-30

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