WO2010039588A3 - Source de courant constant réglable à fonctionnement en mode de conduction continue ("ccm") et en mode de conduction discontinue ("dcm") - Google Patents

Source de courant constant réglable à fonctionnement en mode de conduction continue ("ccm") et en mode de conduction discontinue ("dcm") Download PDF

Info

Publication number
WO2010039588A3
WO2010039588A3 PCT/US2009/058298 US2009058298W WO2010039588A3 WO 2010039588 A3 WO2010039588 A3 WO 2010039588A3 US 2009058298 W US2009058298 W US 2009058298W WO 2010039588 A3 WO2010039588 A3 WO 2010039588A3
Authority
WO
WIPO (PCT)
Prior art keywords
conduction mode
power stage
dcm
converter power
converter
Prior art date
Application number
PCT/US2009/058298
Other languages
English (en)
Other versions
WO2010039588A2 (fr
Inventor
John Laurence Melanson
Original Assignee
Cirrus Logic, Inc.
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 Cirrus Logic, Inc. filed Critical Cirrus Logic, Inc.
Priority to GB1105424.4A priority Critical patent/GB2475668B/en
Priority to CN200980147607.XA priority patent/CN102232264B/zh
Publication of WO2010039588A2 publication Critical patent/WO2010039588A2/fr
Publication of WO2010039588A3 publication Critical patent/WO2010039588A3/fr

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
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • 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
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • 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
    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

Système convertisseur et procédé de fonctionnement associé, le système convertisseur comprenant un étage de puissance convertisseur susceptible de fonctionner en mode de conduction discontinue (DCM) dans une certaine plage de courants de sortie et en mode de conduction continue (CCM) dans une autre plage de courants de sortie. L’étage de puissance convertisseur comprend au moins une bobine d’inductance possédant une certaine inductance et un commutateur de commande. L’étage de puissance convertisseur fournit un courant moyen. Un circuit de commande de courant est relié à l’étage de puissance convertisseur. En mode DCM, l’étage de puissance convertisseur fournit le courant moyen et le circuit de commande de courant est conçu pour mesurer l’inductance de la bobine d’inductance. Le circuit de commande de courant est également conçu pour mesurer un rapport de conversion entrée/sortie de l’étage de puissance convertisseur.
PCT/US2009/058298 2008-09-30 2009-09-25 Source de courant constant réglable à fonctionnement en mode de conduction continue ("ccm") et en mode de conduction discontinue ("dcm") WO2010039588A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1105424.4A GB2475668B (en) 2008-09-30 2009-09-25 Adjustable constant current source with continuous conduction mode ("CCM") and discontinuous conduction mode ("DCM") operation
CN200980147607.XA CN102232264B (zh) 2008-09-30 2009-09-25 具有连续传导模式(ccm)和不连续传导模式(dcm)操作的可调恒流源

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/242,009 US8179110B2 (en) 2008-09-30 2008-09-30 Adjustable constant current source with continuous conduction mode (“CCM”) and discontinuous conduction mode (“DCM”) operation
US12/242,009 2008-09-30

Publications (2)

Publication Number Publication Date
WO2010039588A2 WO2010039588A2 (fr) 2010-04-08
WO2010039588A3 true WO2010039588A3 (fr) 2010-05-27

Family

ID=41651473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/058298 WO2010039588A2 (fr) 2008-09-30 2009-09-25 Source de courant constant réglable à fonctionnement en mode de conduction continue ("ccm") et en mode de conduction discontinue ("dcm")

Country Status (4)

Country Link
US (1) US8179110B2 (fr)
CN (1) CN102232264B (fr)
GB (1) GB2475668B (fr)
WO (1) WO2010039588A2 (fr)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8232742B2 (en) 2008-11-27 2012-07-31 Arkalumen Inc. Method, apparatus and computer-readable media for controlling lighting devices
US8742744B2 (en) * 2009-01-13 2014-06-03 University Of Alabama Sensor-less operation and detection of CCM and DCM operation modes in synchronous switching power converters
US8269422B2 (en) * 2010-04-20 2012-09-18 Chien-Chih Kuo Output controllable frequency modulation electronic ballast
US8964413B2 (en) * 2010-04-22 2015-02-24 Flextronics Ap, Llc Two stage resonant converter enabling soft-switching in an isolated stage
US9089024B2 (en) 2010-05-11 2015-07-21 Arkalumen Inc. Methods and apparatus for changing a DC supply voltage applied to a lighting circuit
US8564214B2 (en) 2010-05-11 2013-10-22 Arkalumen Inc. Circuits for sensing current levels within lighting apparatus
US9086435B2 (en) 2011-05-10 2015-07-21 Arkalumen Inc. Circuits for sensing current levels within a lighting apparatus incorporating a voltage converter
US9510401B1 (en) 2010-08-24 2016-11-29 Cirrus Logic, Inc. Reduced standby power in an electronic power control system
US9192009B2 (en) 2011-02-14 2015-11-17 Arkalumen Inc. Lighting apparatus and method for detecting reflected light from local objects
US8941308B2 (en) 2011-03-16 2015-01-27 Arkalumen Inc. Lighting apparatus and methods for controlling lighting apparatus using ambient light levels
US8939604B2 (en) 2011-03-25 2015-01-27 Arkalumen Inc. Modular LED strip lighting apparatus
EP2695486A2 (fr) * 2011-04-04 2014-02-12 Sgm A/S Procédé d'attaque de diodes électroluminescentes
US9313840B2 (en) 2011-06-03 2016-04-12 Cirrus Logic, Inc. Control data determination from primary-side sensing of a secondary-side voltage in a switching power converter
US9060400B2 (en) 2011-07-12 2015-06-16 Arkalumen Inc. Control apparatus incorporating a voltage converter for controlling lighting apparatus
US9544962B2 (en) * 2011-08-01 2017-01-10 Philips Lighting Holding B.V. Driver device and driving method for driving an LED unit
US8680783B2 (en) 2011-08-10 2014-03-25 Cree, Inc. Bias voltage generation using a load in series with a switch
EP2573575B1 (fr) * 2011-09-23 2016-04-13 Infineon Technologies AG Contrôle numérique de convertisseur de commutation
SG189603A1 (en) * 2011-11-04 2013-05-31 Opulent Electronics Internat Pte Ltd System for driving a plurality of high powered led units
DE102011088966A1 (de) 2011-12-19 2013-06-20 Tridonic Gmbh & Co. Kg Betriebsschaltung für Leuchtdioden und Verfahren zum Betrieb von Leuchtdioden
US8829871B2 (en) * 2012-05-11 2014-09-09 Texas Instruments Deutschland Gmbh Current mode control for DC-DC converter having peak current dependent variable off-time
US20140203790A1 (en) * 2013-01-23 2014-07-24 Fairchild Semiconductor Corporation Hybrid Continuous and Discontinuous Mode Operation
AT14041U1 (de) * 2013-04-30 2015-03-15 Tridonic Gmbh & Co Kg Betriebsschaltung für Leuchtdioden mit Filterelement
GB2514380A (en) * 2013-05-22 2014-11-26 Bernard Frederick Fellerman LED driver circuit
TWI524811B (zh) * 2013-08-14 2016-03-01 Richtek Technology Corp Light emitting diode system and voltage conversion device
JP6262557B2 (ja) * 2014-02-12 2018-01-17 株式会社小糸製作所 車両用灯具およびその駆動装置、その制御方法
US9647558B2 (en) 2014-05-02 2017-05-09 Intersil Americas LLC System and method for maintaining a constant output voltage ripple in a buck converter in discontinuous conduction mode
DE102014111451A1 (de) * 2014-08-12 2016-02-18 Ebm-Papst Mulfingen Gmbh & Co. Kg System zur Anhebung des netzseitigen Leistungsfaktors von dreiphasig gespeisten EC-Motoren
DE102015217712B4 (de) * 2014-09-16 2017-01-19 Koito Manufacturing Co., Ltd. Beleuchtungsschaltkreis und Fahrzeugleuchte, die einen solchen aufweist
CN104619092B (zh) * 2015-02-12 2017-03-29 辉芒微电子（深圳）有限公司 一种led驱动电路
US9992829B2 (en) 2015-05-05 2018-06-05 Arkalumen Inc. Control apparatus and system for coupling a lighting module to a constant current DC driver
US10568180B2 (en) 2015-05-05 2020-02-18 Arkalumen Inc. Method and apparatus for controlling a lighting module having a plurality of LED groups
US10225904B2 (en) 2015-05-05 2019-03-05 Arkalumen, Inc. Method and apparatus for controlling a lighting module based on a constant current level from a power source
US9992836B2 (en) 2015-05-05 2018-06-05 Arkawmen Inc. Method, system and apparatus for activating a lighting module using a buffer load module
US9775211B2 (en) 2015-05-05 2017-09-26 Arkalumen Inc. Circuit and apparatus for controlling a constant current DC driver output
FR3039741B1 (fr) 2015-07-31 2020-11-27 Koito Mfg Co Ltd Circuit d'eclairage et lampe de vehicule l'utilisant
JP6687425B2 (ja) * 2015-07-31 2020-04-22 株式会社小糸製作所 点灯回路およびそれを用いた車両用灯具
TWI607669B (zh) * 2015-11-25 2017-12-01 凌通科技股份有限公司 單一電池紅外線電路以及使用其之遙控器
CN107347222B (zh) * 2016-05-04 2019-02-12 台达电子企业管理（上海）有限公司 调光驱动电路及其控制方法
US10405381B2 (en) * 2016-06-02 2019-09-03 Semiconductor Components Industries, Llc Light emitting diode control circuit with wide range input voltage
US10056828B2 (en) * 2016-07-11 2018-08-21 Infineon Technologies Austria Ag System and method for controlling current in a switching regulator
US9775205B1 (en) 2017-02-20 2017-09-26 Nxp B.V. Discontinuous mode buck converter and method therefor
US10123384B1 (en) * 2017-09-22 2018-11-06 Linear Technology Holding, LLC LED dimming
US10201052B1 (en) * 2017-09-22 2019-02-05 Linear Technology Holding, LLC LED dimming
US10136488B1 (en) 2017-10-05 2018-11-20 Linear Technology Holding, LLC LED dimming
US10715045B1 (en) 2019-01-25 2020-07-14 Semiconductor Components Industries, Llc Methods and systems of operating power converters
JP7378495B2 (ja) 2019-04-24 2023-11-13 パワー・インテグレーションズ・インコーポレーテッド 能動非放散クランプ回路を備える電力コンバーターおよびそれぞれの制御装置
US11632054B2 (en) 2019-04-24 2023-04-18 Power Integrations, Inc. Mode operation detection for control of a power converter with an active clamp switch
US11728731B2 (en) * 2020-05-09 2023-08-15 Intel Corporation Accurate load current sensing apparatus and method
CN111682764B (zh) * 2020-05-20 2021-09-17 珠海格力节能环保制冷技术研究中心有限公司 一种可自动调节的dc-dc降压电路及控制方法
US11496060B2 (en) 2020-11-18 2022-11-08 Power Integrations, Inc. Pulse sharing control for enhancing performance in a multiple output power converter system
US11811314B2 (en) * 2020-12-30 2023-11-07 Texas Instruments Incorporated Multi-mode power converter with programmable control
US11706853B2 (en) * 2021-10-06 2023-07-18 Microsoft Technology Licensing, Llc Monitoring an emission state of light sources
GB2614089B (en) * 2021-12-21 2024-05-29 Cirrus Logic Int Semiconductor Ltd Current estimation in a power converter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060238174A1 (en) * 2005-04-25 2006-10-26 Catalyst Semiconductor, Inc. LED current bias control using a step down regulator
WO2007139975A1 (fr) * 2006-05-26 2007-12-06 Lumificient Technologies, Llc Appareil de régulation du courant et procédés correspondants
WO2007141741A1 (fr) * 2006-06-08 2007-12-13 Koninklijke Philips Electronics N.V. Circuits pour effectuer une gradation de lumière de dispositifs d'éclairage à diodes led
US20080116818A1 (en) * 2006-11-21 2008-05-22 Exclara Inc. Time division modulation with average current regulation for independent control of arrays of light emitting diodes

Family Cites Families (216)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3316495A (en) 1964-07-06 1967-04-25 Cons Systems Corp Low-level commutator with means for providing common mode rejection
US3423689A (en) 1965-08-19 1969-01-21 Hewlett Packard Co Direct current amplifier
US3586988A (en) 1967-12-01 1971-06-22 Newport Lab Direct coupled differential amplifier
US3725804A (en) 1971-11-26 1973-04-03 Avco Corp Capacitance compensation circuit for differential amplifier
US3790878A (en) 1971-12-22 1974-02-05 Keithley Instruments Switching regulator having improved control circuiting
US3881167A (en) 1973-07-05 1975-04-29 Pelton Company Inc Method and apparatus to maintain constant phase between reference and output signals
US4075701A (en) 1975-02-12 1978-02-21 Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung Method and circuit arrangement for adapting the measuring range of a measuring device operating with delta modulation in a navigation system
US4334250A (en) 1978-03-16 1982-06-08 Tektronix, Inc. MFM data encoder with write precompensation
US4337441A (en) 1980-02-11 1982-06-29 Tektronix, Inc. Supply-voltage driver for a differential amplifier
US4414493A (en) 1981-10-06 1983-11-08 Thomas Industries Inc. Light dimmer for solid state ballast
US4476706A (en) 1982-01-18 1984-10-16 Delphian Partners Remote calibration system
US4700188A (en) 1985-01-29 1987-10-13 Micronic Interface Technologies Electric power measurement system and hall effect based electric power meter for use therein
DE3528046A1 (de) 1985-08-05 1987-02-05 Bbc Brown Boveri & Cie Rundsteuerempfaenger
US4677366A (en) 1986-05-12 1987-06-30 Pioneer Research, Inc. Unity power factor power supply
US4683529A (en) 1986-11-12 1987-07-28 Zytec Corporation Switching power supply with automatic power factor correction
US4797633A (en) 1987-03-20 1989-01-10 Video Sound, Inc. Audio amplifier
US4994952A (en) 1988-02-10 1991-02-19 Electronics Research Group, Inc. Low-noise switching power supply having variable reluctance transformer
GB8817684D0 (en) 1988-07-25 1988-09-01 Astec Int Ltd Power factor improvement
GB8821130D0 (en) 1988-09-09 1988-10-12 Ml Aviation Co Ltd Inductive coupler
US4941078A (en) 1989-03-07 1990-07-10 Rca Licensing Corporation Synchronized switch-mode power supply
US4973919A (en) 1989-03-23 1990-11-27 Doble Engineering Company Amplifying with directly coupled, cascaded amplifiers
US4940929A (en) 1989-06-23 1990-07-10 Apollo Computer, Inc. AC to DC converter with unity power factor
US4980898A (en) 1989-08-08 1990-12-25 Siemens-Pacesetter, Inc. Self-oscillating burst mode transmitter with integral number of periods
US5109185A (en) 1989-09-29 1992-04-28 Ball Newton E Phase-controlled reversible power converter presenting a controllable counter emf to a source of an impressed voltage
US4992919A (en) 1989-12-29 1991-02-12 Lee Chu Quon Parallel resonant converter with zero voltage switching
US5278490A (en) 1990-09-04 1994-01-11 California Institute Of Technology One-cycle controlled switching circuit
US5121079A (en) 1991-02-12 1992-06-09 Dargatz Marvin R Driven-common electronic amplifier
US5477481A (en) 1991-02-15 1995-12-19 Crystal Semiconductor Corporation Switched-capacitor integrator with chopper stabilization performed at the sampling rate
US5206540A (en) 1991-05-09 1993-04-27 Unitrode Corporation Transformer isolated drive circuit
EP0580923B1 (fr) 1992-07-30 1997-10-15 STMicroelectronics S.r.l. Dispositif comprenant un amplificateur d'erreur, un élément de commande et un circuit pour la détection de variations de tension en relation avec une tension de référence
US5264780A (en) 1992-08-10 1993-11-23 International Business Machines Corporation On time control and gain circuit
US5313381A (en) 1992-09-01 1994-05-17 Power Integrations, Inc. Three-terminal switched mode power supply integrated circuit
US5359180A (en) 1992-10-02 1994-10-25 General Electric Company Power supply system for arcjet thrusters
JPH06209569A (ja) 1993-01-05 1994-07-26 Yokogawa Electric Corp スイッチング電源装置
US5323157A (en) 1993-01-15 1994-06-21 Motorola, Inc. Sigma-delta digital-to-analog converter with reduced noise
US5481178A (en) 1993-03-23 1996-01-02 Linear Technology Corporation Control circuit and method for maintaining high efficiency over broad current ranges in a switching regulator circuit
US5638265A (en) 1993-08-24 1997-06-10 Gabor; George Low line harmonic AC to DC power supply
US5383109A (en) 1993-12-10 1995-01-17 University Of Colorado High power factor boost rectifier apparatus
US5479333A (en) 1994-04-25 1995-12-26 Chrysler Corporation Power supply start up booster circuit
US5565761A (en) 1994-09-02 1996-10-15 Micro Linear Corp Synchronous switching cascade connected offline PFC-PWM combination power converter controller
US5747977A (en) 1995-03-30 1998-05-05 Micro Linear Corporation Switching regulator having low power mode responsive to load power consumption
JPH09140145A (ja) 1995-11-15 1997-05-27 Samsung Electron Co Ltd 力率補償回路を備えた昇圧型コンバータ
GB2307802B (en) 1995-12-01 2000-06-07 Ibm Power supply with power factor correction circuit
KR0154776B1 (ko) 1995-12-28 1998-12-15 김광호 역률 보상 회로
JP3869903B2 (ja) 1996-03-05 2007-01-17 キヤノン株式会社 電子写真画像形成装置
US5798635A (en) 1996-06-20 1998-08-25 Micro Linear Corporation One pin error amplifier and switched soft-start for an eight pin PFC-PWM combination integrated circuit converter controller
US5781040A (en) 1996-10-31 1998-07-14 Hewlett-Packard Company Transformer isolated driver for power transistor using frequency switching as the control signal
US5783909A (en) 1997-01-10 1998-07-21 Relume Corporation Maintaining LED luminous intensity
US6084450A (en) 1997-01-14 2000-07-04 The Regents Of The University Of California PWM controller with one cycle response
US5960207A (en) 1997-01-21 1999-09-28 Dell Usa, L.P. System and method for reducing power losses by gating an active power factor conversion process
US5793625A (en) 1997-01-24 1998-08-11 Baker Hughes Incorporated Boost converter regulated alternator
JP3644615B2 (ja) 1997-02-17 2005-05-11 Ｔｄｋ株式会社 スイッチング電源
US5952849A (en) 1997-02-21 1999-09-14 Analog Devices, Inc. Logic isolator with high transient immunity
US6442213B1 (en) 1997-04-22 2002-08-27 Silicon Laboratories Inc. Digital isolation system with hybrid circuit in ADC calibration loop
US5901176A (en) 1997-04-29 1999-05-04 Hewlett-Packard Company Delta-sigma pulse width modulator control circuit
US6211627B1 (en) 1997-07-29 2001-04-03 Michael Callahan Lighting systems
US5963086A (en) 1997-08-08 1999-10-05 Velodyne Acoustics, Inc. Class D amplifier with switching control
US7014336B1 (en) 1999-11-18 2006-03-21 Color Kinetics Incorporated Systems and methods for generating and modulating illumination conditions
US6967448B2 (en) 1997-08-26 2005-11-22 Color Kinetics, Incorporated Methods and apparatus for controlling illumination
US6975079B2 (en) 1997-08-26 2005-12-13 Color Kinetics Incorporated Systems and methods for controlling illumination sources
US6211626B1 (en) 1997-08-26 2001-04-03 Color Kinetics, Incorporated Illumination components
US6806659B1 (en) 1997-08-26 2004-10-19 Color Kinetics, Incorporated Multicolored LED lighting method and apparatus
US6016038A (en) 1997-08-26 2000-01-18 Color Kinetics, Inc. Multicolored LED lighting method and apparatus
US6888322B2 (en) 1997-08-26 2005-05-03 Color Kinetics Incorporated Systems and methods for color changing device and enclosure
US7064498B2 (en) 1997-08-26 2006-06-20 Color Kinetics Incorporated Light-emitting diode based products
JPH1172515A (ja) 1997-08-28 1999-03-16 Iwatsu Electric Co Ltd 広帯域アナログ絶縁回路
US6873065B2 (en) 1997-10-23 2005-03-29 Analog Devices, Inc. Non-optical signal isolator
US5929400A (en) 1997-12-22 1999-07-27 Otis Elevator Company Self commissioning controller for field-oriented elevator motor/drive system
US5900683A (en) 1997-12-23 1999-05-04 Ford Global Technologies, Inc. Isolated gate driver for power switching device and method for carrying out same
US6509913B2 (en) 1998-04-30 2003-01-21 Openwave Systems Inc. Configurable man-machine interface
US6043633A (en) 1998-06-05 2000-03-28 Systel Development & Industries Power factor correction method and apparatus
US6083276A (en) 1998-06-11 2000-07-04 Corel, Inc. Creating and configuring component-based applications using a text-based descriptive attribute grammar
DE19827755A1 (de) 1998-06-23 2000-03-02 Siemens Ag Hybridfilter für ein Wechselspannungsnetz
IL125328A0 (en) 1998-07-13 1999-03-12 Univ Ben Gurion Modular apparatus for regulating the harmonics of current drawn from power lines
US6140777A (en) 1998-07-29 2000-10-31 Philips Electronics North America Corporation Preconditioner having a digital power factor controller
EP1014563B1 (fr) 1998-12-14 2006-03-01 Alcatel Dispositif amplificateur à amplification de tension et consommation de puissance réduite
US6495964B1 (en) 1998-12-18 2002-12-17 Koninklijke Philips Electronics N.V. LED luminaire with electrically adjusted color balance using photodetector
US6064187A (en) 1999-02-12 2000-05-16 Analog Devices, Inc. Voltage regulator compensation circuit and method
US6344811B1 (en) 1999-03-16 2002-02-05 Audio Logic, Inc. Power supply compensation for noise shaped, digital amplifiers
DE10032846A1 (de) 1999-07-12 2001-01-25 Int Rectifier Corp Leistungsfaktor-Korrektursteuerschaltung
US6317068B1 (en) 1999-08-23 2001-11-13 Level One Communications, Inc. Method and apparatus for matching common mode output voltage at a switched-capacitor to continuous-time interface
US6181114B1 (en) 1999-10-26 2001-01-30 International Business Machines Corporation Boost circuit which includes an additional winding for providing an auxiliary output voltage
US7158633B1 (en) 1999-11-16 2007-01-02 Silicon Laboratories, Inc. Method and apparatus for monitoring subscriber loop interface circuitry power dissipation
US6229271B1 (en) 2000-02-24 2001-05-08 Osram Sylvania Inc. Low distortion line dimmer and dimming ballast
US6246183B1 (en) 2000-02-28 2001-06-12 Litton Systems, Inc. Dimmable electrodeless light source
US6636107B2 (en) 2000-03-28 2003-10-21 International Rectifier Corporation Active filter for reduction of common mode current
US6970503B1 (en) 2000-04-21 2005-11-29 National Semiconductor Corporation Apparatus and method for converting analog signal to pulse-width-modulated signal
US6693571B2 (en) 2000-05-10 2004-02-17 Cirrus Logic, Inc. Modulation of a digital input signal using a digital signal modulator and signal splitting
US6304473B1 (en) 2000-06-02 2001-10-16 Iwatt Operating a power converter at optimal efficiency
US6882552B2 (en) 2000-06-02 2005-04-19 Iwatt, Inc. Power converter driven by power pulse and sense pulse
DE60101978T2 (de) 2000-06-15 2004-12-23 City University Of Hong Kong Dimmbares EVG
US6373340B1 (en) 2000-08-14 2002-04-16 K. S. Waves, Ltd. High-efficiency audio power amplifier
US6636003B2 (en) 2000-09-06 2003-10-21 Spectrum Kinetics Apparatus and method for adjusting the color temperature of white semiconduct or light emitters
US6407691B1 (en) 2000-10-18 2002-06-18 Cirrus Logic, Inc. Providing power, clock, and control signals as a single combined signal across an isolation barrier in an ADC
US6583550B2 (en) 2000-10-24 2003-06-24 Toyoda Gosei Co., Ltd. Fluorescent tube with light emitting diodes
FR2815790B1 (fr) 2000-10-24 2003-02-07 St Microelectronics Sa Convertisseur de tension a circuit de commande autooscillant
US6343026B1 (en) 2000-11-09 2002-01-29 Artesyn Technologies, Inc. Current limit circuit for interleaved converters
JP3371962B2 (ja) 2000-12-04 2003-01-27 サンケン電気株式会社 Ｄｃ−ｄｃコンバ−タ
DE10061563B4 (de) 2000-12-06 2005-12-08 RUBITEC Gesellschaft für Innovation und Technologie der Ruhr-Universität Bochum mbH Verfahren und Vorrichtung zum Ein- und Ausschalten von Leistungshalbleitern, insbesondere für ein drehzahlvariables Betreiben einer Asynchronmaschine, ein Betreiben einer Zündschaltung für Ottomotoren, sowie Schaltnetzteil
US6441558B1 (en) 2000-12-07 2002-08-27 Koninklijke Philips Electronics N.V. White LED luminary light control system
EP1215808B1 (fr) 2000-12-13 2011-05-11 Semiconductor Components Industries, LLC Circuit d'alimentation de puissance et procédé associé pour la detection de la démagnetisation de l'alimentation de puissance
DE60210217T2 (de) 2001-01-31 2006-11-16 Matsushita Electric Industrial Co., Ltd., Kadoma Schaltnetzteilgerät
JP2004538601A (ja) 2001-02-02 2004-12-24 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 一体型光源
EP1239575A3 (fr) 2001-03-08 2003-11-05 Shindengen Electric Manufacturing Company, Limited Alimentation de puissance DC stabilisée
US6452521B1 (en) 2001-03-14 2002-09-17 Rosemount Inc. Mapping a delta-sigma converter range to a sensor range
US6510995B2 (en) 2001-03-16 2003-01-28 Koninklijke Philips Electronics N.V. RGB LED based light driver using microprocessor controlled AC distributed power system
US6917504B2 (en) 2001-05-02 2005-07-12 Supertex, Inc. Apparatus and method for adaptively controlling power supplied to a hot-pluggable subsystem
WO2002091805A2 (fr) 2001-05-10 2002-11-14 Color Kinetics Incorporated Systemes et procedes pour la synchronisation d'effets de lumiere
WO2003001315A1 (fr) 2001-06-21 2003-01-03 Champion Microelectronic Corp. Convertisseur de puissance pfc-pwm a equilibrage weber
US6628106B1 (en) 2001-07-30 2003-09-30 University Of Central Florida Control method and circuit to provide voltage and current regulation for multiphase DC/DC converters
IL147578A (en) 2002-01-10 2006-06-11 Lightech Electronics Ind Ltd Lamp transformer for use with an electronic dimmer and method for use thereof for reducing acoustic noise
AU2003201234A1 (en) 2002-01-11 2003-07-24 Precisionh2 Inc. Power factor controller
US6980446B2 (en) 2002-02-08 2005-12-27 Sanken Electric Co., Ltd. Circuit for starting power source apparatus
GB0204212D0 (en) 2002-02-22 2002-04-10 Oxley Dev Co Ltd Led drive circuit
SE0201432D0 (sv) 2002-04-29 2002-05-13 Emerson Energy Systems Ab A Power supply system and apparatus
US7358679B2 (en) 2002-05-09 2008-04-15 Philips Solid-State Lighting Solutions, Inc. Dimmable LED-based MR16 lighting apparatus and methods
WO2003101086A2 (fr) 2002-05-28 2003-12-04 Koninklijke Philips Electronics N.V. Diminution du flou cinetique dans un cycle de service variable
JP4175027B2 (ja) 2002-05-28 2008-11-05 松下電工株式会社 放電灯点灯装置
EP1367703A1 (fr) 2002-05-31 2003-12-03 STMicroelectronics S.r.l. Méthode pour régler la tension d'alimentation d'une charge et régulateur de tension correspondant
US6728121B2 (en) 2002-05-31 2004-04-27 Green Power Technologies Ltd. Method and apparatus for active power factor correction with minimum input current distortion
US6753661B2 (en) 2002-06-17 2004-06-22 Koninklijke Philips Electronics N.V. LED-based white-light backlighting for electronic displays
EP1525656A1 (fr) 2002-06-23 2005-04-27 Powerlynx A/S Convertisseur de puissance
US6756772B2 (en) 2002-07-08 2004-06-29 Cogency Semiconductor Inc. Dual-output direct current voltage converter
US6860628B2 (en) 2002-07-17 2005-03-01 Jonas J. Robertson LED replacement for fluorescent lighting
US6781351B2 (en) 2002-08-17 2004-08-24 Supertex Inc. AC/DC cascaded power converters having high DC conversion ratio and improved AC line harmonics
US6940733B2 (en) 2002-08-22 2005-09-06 Supertex, Inc. Optimal control of wide conversion ratio switching converters
US6724174B1 (en) 2002-09-12 2004-04-20 Linear Technology Corp. Adjustable minimum peak inductor current level for burst mode in current-mode DC-DC regulators
KR100470599B1 (ko) 2002-10-16 2005-03-10 삼성전자주식회사 전자기기의 회로를 보호할 수 있는 전원공급장치
US6744223B2 (en) 2002-10-30 2004-06-01 Quebec, Inc. Multicolor lamp system
US6727832B1 (en) 2002-11-27 2004-04-27 Cirrus Logic, Inc. Data converters with digitally filtered pulse width modulation output stages and methods and systems using the same
US6741123B1 (en) 2002-12-26 2004-05-25 Cirrus Logic, Inc. Delta-sigma amplifiers with output stage supply voltage variation compensation and methods and digital amplifier systems using the same
US6768655B1 (en) 2003-02-03 2004-07-27 System General Corp. Discontinuous mode PFC controller having a power saving modulator and operation method thereof
JP3947720B2 (ja) 2003-02-28 2007-07-25 日本放送協会 白熱灯用調光制御照明装置の使用方法
JP4082672B2 (ja) 2003-03-06 2008-04-30 株式会社デンソー 電気絶縁型スイッチング素子駆動回路
US7078963B1 (en) 2003-03-21 2006-07-18 D2Audio Corporation Integrated PULSHI mode with shutdown
EP2302850A1 (fr) 2003-04-30 2011-03-30 Analog Devices, Inc. Isolateurs de signal utilisant des micro-transformateurs
US7126288B2 (en) 2003-05-05 2006-10-24 International Rectifier Corporation Digital electronic ballast control apparatus and method
JP4072765B2 (ja) 2003-05-12 2008-04-09 日本ビクター株式会社 電力増幅回路
WO2004103027A2 (fr) 2003-05-13 2004-11-25 Universal Plastics Products, Inc. Eclairage electroluminescent pour compas magnetique
US6956750B1 (en) 2003-05-16 2005-10-18 Iwatt Inc. Power converter controller having event generator for detection of events and generation of digital error
US6944034B1 (en) 2003-06-30 2005-09-13 Iwatt Inc. System and method for input current shaping in a power converter
WO2005003625A1 (fr) 2003-07-02 2005-01-13 S.C. Johnson & Son, Inc. Lampe et ampoule d'eclairage et eclairage d'ambiance
EP1643611B1 (fr) 2003-07-07 2020-04-22 Nippon Telegraph And Telephone Corporation Survolteur
US6839247B1 (en) 2003-07-10 2005-01-04 System General Corp. PFC-PWM controller having a power saving means
US6933706B2 (en) 2003-09-15 2005-08-23 Semiconductor Components Industries, Llc Method and circuit for optimizing power efficiency in a DC-DC converter
JP4107209B2 (ja) 2003-09-29 2008-06-25 株式会社村田製作所 リップルコンバータ
US6958920B2 (en) 2003-10-02 2005-10-25 Supertex, Inc. Switching power converter and method of controlling output voltage thereof using predictive sensing of magnetic flux
ITMI20031987A1 (it) 2003-10-14 2005-04-15 Archimede Elettronica S R L Dispositivo e metodo per il controllo del colore di una sorgente di illuminazione
US7009543B2 (en) 2004-01-16 2006-03-07 Cirrus Logic, Inc. Multiple non-monotonic quantizer regions for noise shaping
US7034611B2 (en) 2004-02-09 2006-04-25 Texas Instruments Inc. Multistage common mode feedback for improved linearity line drivers
US7142142B2 (en) 2004-02-25 2006-11-28 Nelicor Puritan Bennett, Inc. Multi-bit ADC with sigma-delta modulation
WO2005086245A2 (fr) 2004-03-03 2005-09-15 S.C. Johnson & Son, Inc. Ampoule electrique a dels emettant des ingredients actifs
AU2005222987B9 (en) 2004-03-15 2009-10-22 Signify North America Corporation Power control methods and apparatus
US7266001B1 (en) 2004-03-19 2007-09-04 Marvell International Ltd. Method and apparatus for controlling power factor correction
US7569996B2 (en) 2004-03-19 2009-08-04 Fred H Holmes Omni voltage direct current power supply
US6977827B2 (en) 2004-03-22 2005-12-20 American Superconductor Corporation Power system having a phase locked loop with a notch filter
US7317625B2 (en) 2004-06-04 2008-01-08 Iwatt Inc. Parallel current mode control using a direct duty cycle algorithm with low computational requirements to perform power factor correction
US7259524B2 (en) 2004-06-10 2007-08-21 Lutron Electronics Co., Inc. Apparatus and methods for regulating delivery of electrical energy
EP1608206B1 (fr) 2004-06-14 2009-08-12 STMicroelectronics S.r.l. Dispositif d'alimentation de diodes é électroluminescentes avec intensité variable de la lumière
US7109791B1 (en) 2004-07-09 2006-09-19 Rf Micro Devices, Inc. Tailored collector voltage to minimize variation in AM to PM distortion in a power amplifier
US7088059B2 (en) 2004-07-21 2006-08-08 Boca Flasher Modulated control circuit and method for current-limited dimming and color mixing of display and illumination systems
JP4081462B2 (ja) 2004-08-02 2008-04-23 沖電気工業株式会社 表示パネルの色合い調整回路
JP2006067730A (ja) 2004-08-27 2006-03-09 Sanken Electric Co Ltd 力率改善回路
US7276861B1 (en) 2004-09-21 2007-10-02 Exclara, Inc. System and method for driving LED
US7292013B1 (en) 2004-09-24 2007-11-06 Marvell International Ltd. Circuits, systems, methods, and software for power factor correction and/or control
US7394210B2 (en) 2004-09-29 2008-07-01 Tir Technology Lp System and method for controlling luminaires
JP4060840B2 (ja) * 2004-10-01 2008-03-12 松下電器産業株式会社 発光ダイオード駆動用半導体回路、及びそれを有する発光ダイオード駆動装置
US20060125420A1 (en) 2004-12-06 2006-06-15 Michael Boone Candle emulation device
GB2421367B (en) 2004-12-20 2008-09-03 Stephen Bryce Hayes Lighting apparatus and method
US7221130B2 (en) 2005-01-05 2007-05-22 Fyrestorm, Inc. Switching power converter employing pulse frequency modulation control
US7102902B1 (en) 2005-02-17 2006-09-05 Ledtronics, Inc. Dimmer circuit for LED
EP1880585A1 (fr) 2005-03-03 2008-01-23 Tir Systems Ltd. Procede et appareil de commande de contrainte thermique dans des dispositifs electroluminescents
US7378805B2 (en) 2005-03-22 2008-05-27 Fairchild Semiconductor Corporation Single-stage digital power converter for driving LEDs
US7064531B1 (en) 2005-03-31 2006-06-20 Micrel, Inc. PWM buck regulator with LDO standby mode
US7855864B2 (en) * 2005-03-31 2010-12-21 Semtech Corporation Switched mode power supply method and apparatus
US7375476B2 (en) 2005-04-08 2008-05-20 S.C. Johnson & Son, Inc. Lighting device having a circuit including a plurality of light emitting diodes, and methods of controlling and calibrating lighting devices
US7317305B1 (en) * 2005-05-18 2008-01-08 Volterra Semiconductor Corporation Method and apparatus for multi-phase DC-DC converters using coupled inductors in discontinuous conduction mode
KR100587022B1 (ko) 2005-05-18 2006-06-08 삼성전기주식회사 디밍 회로를 갖는 ｌｅｄ 구동회로
DE102006022845B4 (de) 2005-05-23 2016-01-07 Infineon Technologies Ag Ansteuerschaltung für eine Schaltereinheit einer getakteten Leistungsversorgungsschaltung und Resonanzkonverter
US7106603B1 (en) 2005-05-23 2006-09-12 Li Shin International Enterprise Corporation Switch-mode self-coupling auxiliary power device
US7336127B2 (en) 2005-06-10 2008-02-26 Rf Micro Devices, Inc. Doherty amplifier configuration for a collector controlled power amplifier
US7388764B2 (en) 2005-06-16 2008-06-17 Active-Semi International, Inc. Primary side constant output current controller
US7145295B1 (en) 2005-07-24 2006-12-05 Aimtron Technology Corp. Dimming control circuit for light-emitting diodes
US7888881B2 (en) 2005-07-28 2011-02-15 Exclara, Inc. Pulsed current averaging controller with amplitude modulation and time division multiplexing for arrays of independent pluralities of light emitting diodes
TWI277225B (en) 2005-08-03 2007-03-21 Beyond Innovation Tech Co Ltd Apparatus of light source and adjustable control circuit for LEDs
WO2007019663A1 (fr) 2005-08-17 2007-02-22 Tir Technology Lp Systeme de luminaire a commande numerique
EP1920638B1 (fr) 2005-09-03 2011-08-10 Holdip Limited Ameliorations apportees a des systemes d'eclairage
US7249865B2 (en) 2005-09-07 2007-07-31 Plastic Inventions And Patents Combination fluorescent and LED lighting system
US7545130B2 (en) 2005-11-11 2009-06-09 L&L Engineering, Llc Non-linear controller for switching power supply
US7856566B2 (en) 2005-11-29 2010-12-21 Power Integrations, Inc. Standby arrangement for power supplies
US7518350B2 (en) * 2005-12-16 2009-04-14 Silicon Laboratories Inc. MCU/driver point of load digital controller with optimized voltage
US7183957B1 (en) 2005-12-30 2007-02-27 Cirrus Logic, Inc. Signal processing system with analog-to-digital converter using delta-sigma modulation having an internal stabilizer loop
US7656103B2 (en) 2006-01-20 2010-02-02 Exclara, Inc. Impedance matching circuit for current regulation of solid state lighting
US7310244B2 (en) 2006-01-25 2007-12-18 System General Corp. Primary side controlled switching regulator
KR100755624B1 (ko) 2006-02-09 2007-09-04 삼성전기주식회사 필드 순차 칼라 모드의 액정 표시 장치
JP2009526365A (ja) 2006-02-10 2009-07-16 フィリップス ソリッド−ステート ライティング ソリューションズ インコーポレイテッド 負荷当たり単一のスイッチング段を使用した高力率の制御された電力供給のための方法及び装置
CN101127495B (zh) 2006-08-16 2010-04-21 昂宝电子（上海）有限公司 用于为开关式电源提供控制的系统和方法
US7733034B2 (en) 2006-09-01 2010-06-08 Broadcom Corporation Single inductor serial-parallel LED driver
US7864546B2 (en) 2007-02-13 2011-01-04 Akros Silicon Inc. DC-DC converter with communication across an isolation pathway
US7675759B2 (en) 2006-12-01 2010-03-09 Flextronics International Usa, Inc. Power system with power converters having an adaptive controller
US7667986B2 (en) 2006-12-01 2010-02-23 Flextronics International Usa, Inc. Power system with power converters having an adaptive controller
KR101357006B1 (ko) 2007-01-18 2014-01-29 페어차일드코리아반도체 주식회사 컨버터 및 그 구동 방법
US8362838B2 (en) 2007-01-19 2013-01-29 Cirrus Logic, Inc. Multi-stage amplifier with multiple sets of fixed and variable voltage rails
US7652459B2 (en) * 2007-02-23 2010-01-26 Intel Corporation Adaptive controller with mode tracking and parametric estimation for digital power converters
US7288902B1 (en) 2007-03-12 2007-10-30 Cirrus Logic, Inc. Color variations in a dimmable lighting device with stable color temperature light sources
US8174204B2 (en) 2007-03-12 2012-05-08 Cirrus Logic, Inc. Lighting system with power factor correction control data determined from a phase modulated signal
US7560677B2 (en) 2007-03-13 2009-07-14 Renaissance Lighting, Inc. Step-wise intensity control of a solid state lighting system
GB2447873B (en) 2007-03-30 2009-07-29 Cambridge Semiconductor Ltd Forward power converter controllers
US7480159B2 (en) 2007-04-19 2009-01-20 Leadtrend Technology Corp. Switching-mode power converter and pulse-width-modulation control circuit with primary-side feedback control
US7554473B2 (en) 2007-05-02 2009-06-30 Cirrus Logic, Inc. Control system using a nonlinear delta-sigma modulator with nonlinear process modeling
US7974109B2 (en) 2007-05-07 2011-07-05 Iwatt Inc. Digital compensation for cable drop in a primary side control power supply controller
US7656687B2 (en) 2007-12-11 2010-02-02 Cirrus Logic, Inc. Modulated transformer-coupled gate control signaling method and apparatus
US7821333B2 (en) 2008-01-04 2010-10-26 Texas Instruments Incorporated High-voltage differential amplifier and method using low voltage amplifier and dynamic voltage selection
US7759881B1 (en) * 2008-03-31 2010-07-20 Cirrus Logic, Inc. LED lighting system with a multiple mode current control dimming strategy
US7750738B2 (en) 2008-11-20 2010-07-06 Infineon Technologies Ag Process, voltage and temperature control for high-speed, low-power fixed and variable gain amplifiers based on MOSFET resistors
US7994863B2 (en) 2008-12-31 2011-08-09 Cirrus Logic, Inc. Electronic system having common mode voltage range enhancement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060238174A1 (en) * 2005-04-25 2006-10-26 Catalyst Semiconductor, Inc. LED current bias control using a step down regulator
WO2007139975A1 (fr) * 2006-05-26 2007-12-06 Lumificient Technologies, Llc Appareil de régulation du courant et procédés correspondants
WO2007141741A1 (fr) * 2006-06-08 2007-12-13 Koninklijke Philips Electronics N.V. Circuits pour effectuer une gradation de lumière de dispositifs d'éclairage à diodes led
US20080116818A1 (en) * 2006-11-21 2008-05-22 Exclara Inc. Time division modulation with average current regulation for independent control of arrays of light emitting diodes

Also Published As

Publication number Publication date
WO2010039588A2 (fr) 2010-04-08
CN102232264B (zh) 2015-07-08
GB2475668B (en) 2012-12-19
US8179110B2 (en) 2012-05-15
GB201105424D0 (en) 2011-05-18
US20100079124A1 (en) 2010-04-01
CN102232264A (zh) 2011-11-02
GB2475668A (en) 2011-05-25

Similar Documents

Publication Publication Date Title
WO2010039588A3 (fr) Source de courant constant réglable à fonctionnement en mode de conduction continue ("ccm") et en mode de conduction discontinue ("dcm")
EP1850465A3 (fr) Contrôle d'un convertisseur de puissance par le changement de l'amplification de reglage de courant en fonction de la frequence porteuse
WO2009118682A3 (fr) Commutation sous intensité nulle
EP1912320A3 (fr) Procédé et appareil pour circuit de contrôle avec modèles de fonctionnement multiples
EP1501177A3 (fr) Alimentation de puissance avec correction du facteur de puissance
WO2011001369A3 (fr) Circuit et procédé d'alimentation électrique à bas coût
TW200603525A (en) Boost converter
EP2187512A3 (fr) Procédé et appareil pour la commande d'un circuit de correction du facteur de puissance
TW200729686A (en) Switching power supply device
WO2008139518A1 (fr) Système convertisseur de puissance
WO2013130836A3 (fr) Contrôle d'un convertisseur à récupération à utiliser avec un système informatique
WO2008132553A3 (fr) Systèmes de collecte d'énergie distribuée utilisant des sources d'alimentation cc
WO2007008585A3 (fr) Alimentation fournissant une gamme de tension etendue
WO2007037831A8 (fr) Circuit d'attaque de lampe
WO2006015015A3 (fr) Controleur pwm numerique
WO2007041554A3 (fr) Analyse intra-systeme et compensation pour dispositif de commande de modulateur d'impulsions en duree numerique
WO2012085759A3 (fr) Dispositif de conversion électrique destiné à attaquer une charge d'éclairage à semiconducteurs
EP2187511A3 (fr) Procédé et appareil pour augmenter l'efficacité dans un circuit de correction du facteur de puissance
WO2007141823A3 (fr) Procédé et dispositif pour commander le fonctionnement de sources de puissance au point de puissance maximale
EP1575152A3 (fr) Circuits de correction du facteur de puissance
WO2006052794A3 (fr) Commande numerique de circuit de correction de facteur de puissance sans pont
EP1457857A3 (fr) Apparat de contrôle pour l'asservissement de puissance maximale.
WO2009147563A3 (fr) Circuit et procédé d'attaque de lampe à del
IE87160B1 (en) A power converter
EP1742322A3 (fr) Appareil électronique avec fonction de conversion d'une tension continue et convertisseur à courant continu

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980147607.X

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09792983

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 1105424

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20090925

WWE Wipo information: entry into national phase

Ref document number: 1105424.4

Country of ref document: GB

122 Ep: pct application non-entry in european phase

Ref document number: 09792983

Country of ref document: EP

Kind code of ref document: A2