ATE338443T1 - Intregrierte schaltung zur lampenerwärmung und dimmersteuerung - Google Patents

Intregrierte schaltung zur lampenerwärmung und dimmersteuerung

Info

Publication number
ATE338443T1
ATE338443T1 AT01924584T AT01924584T ATE338443T1 AT E338443 T1 ATE338443 T1 AT E338443T1 AT 01924584 T AT01924584 T AT 01924584T AT 01924584 T AT01924584 T AT 01924584T AT E338443 T1 ATE338443 T1 AT E338443T1
Authority
AT
Austria
Prior art keywords
dimming
lamp
circuitry
filaments
integrated circuit
Prior art date
Application number
AT01924584T
Other languages
English (en)
Inventor
John Chou
Yung-Lin Lin
Original Assignee
O2Micro Int Ltd
John Chou
Yung-Lin Lin
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 O2Micro Int Ltd, John Chou, Yung-Lin Lin filed Critical O2Micro Int Ltd
Application granted granted Critical
Publication of ATE338443T1 publication Critical patent/ATE338443T1/de

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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2985—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • 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
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/04—Dimming circuit for fluorescent lamps

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Cookers (AREA)
  • Control Of Resistance Heating (AREA)
  • Networks Using Active Elements (AREA)
AT01924584T 2000-05-12 2001-04-03 Intregrierte schaltung zur lampenerwärmung und dimmersteuerung ATE338443T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20362100P 2000-05-12 2000-05-12

Publications (1)

Publication Number Publication Date
ATE338443T1 true ATE338443T1 (de) 2006-09-15

Family

ID=22754676

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01924584T ATE338443T1 (de) 2000-05-12 2001-04-03 Intregrierte schaltung zur lampenerwärmung und dimmersteuerung

Country Status (8)

Country Link
US (1) US6531831B2 (de)
EP (1) EP1300055B1 (de)
CN (2) CN100591187C (de)
AT (1) ATE338443T1 (de)
AU (1) AU2001251230A1 (de)
DE (1) DE60122727T2 (de)
TW (1) TW507472B (de)
WO (1) WO2001089271A1 (de)

Families Citing this family (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6114814A (en) * 1998-12-11 2000-09-05 Monolithic Power Systems, Inc. Apparatus for controlling a discharge lamp in a backlighted display
US6946806B1 (en) 2000-06-22 2005-09-20 Microsemi Corporation Method and apparatus for controlling minimum brightness of a fluorescent lamp
WO2001098853A1 (en) * 2000-06-19 2001-12-27 International Rectifier Corporation Ballast control ic with minimal internal and external components
KR100594889B1 (ko) * 2001-08-27 2006-07-03 엘지이노텍 주식회사 인버터의 디밍회로
WO2003037712A1 (en) * 2001-11-01 2003-05-08 Ishigaki Company Limited Water jet propelling device of boat
US6979959B2 (en) * 2002-12-13 2005-12-27 Microsemi Corporation Apparatus and method for striking a fluorescent lamp
DE602004013138T2 (de) * 2003-05-07 2009-05-07 Koninklijke Philips Electronics N.V. Verfahren und schaltung zur steuerung des stroms von leuchtdioden
DE10323752A1 (de) * 2003-05-22 2004-12-09 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Verfahren zum Betreiben einer Lichtanlage
US6897698B1 (en) * 2003-05-30 2005-05-24 O2Micro International Limited Phase shifting and PWM driving circuits and methods
US7187139B2 (en) * 2003-09-09 2007-03-06 Microsemi Corporation Split phase inverters for CCFL backlight system
US7183727B2 (en) * 2003-09-23 2007-02-27 Microsemi Corporation Optical and temperature feedbacks to control display brightness
ATE458382T1 (de) * 2003-10-06 2010-03-15 Microsemi Corp Stromteilungsschema und einrichtung für mehrfach- ccf-lampenbetrieb
US7279851B2 (en) * 2003-10-21 2007-10-09 Microsemi Corporation Systems and methods for fault protection in a balancing transformer
CN1898997A (zh) * 2003-11-03 2007-01-17 美国芯源系统股份有限公司 具有用于驱动器控制的集成光敏元件的光源驱动器
JP2007514289A (ja) * 2003-12-11 2007-05-31 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 開回路電圧調整を備える電子バラスト
US7239087B2 (en) 2003-12-16 2007-07-03 Microsemi Corporation Method and apparatus to drive LED arrays using time sharing technique
US7468722B2 (en) 2004-02-09 2008-12-23 Microsemi Corporation Method and apparatus to control display brightness with ambient light correction
US7112929B2 (en) * 2004-04-01 2006-09-26 Microsemi Corporation Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system
US7250731B2 (en) 2004-04-07 2007-07-31 Microsemi Corporation Primary side current balancing scheme for multiple CCF lamp operation
US7161305B2 (en) * 2004-05-19 2007-01-09 Monolithic Power Systems, Inc. Method and apparatus for single-ended conversion of DC to AC power for driving discharge lamps
US7755595B2 (en) 2004-06-07 2010-07-13 Microsemi Corporation Dual-slope brightness control for transflective displays
WO2006019888A2 (en) * 2004-07-26 2006-02-23 Microsemi Corporation Push-pull driver with null-short feature
TWI306725B (en) * 2004-08-20 2009-02-21 Monolithic Power Systems Inc Minimizing bond wire power losses in integrated circuit full bridge ccfl drivers
TWI318084B (en) 2004-10-13 2009-12-01 Monolithic Power Systems Inc Methods and protection schemes for driving discharge lamps in large panel applications
US7187132B2 (en) * 2004-12-27 2007-03-06 Osram Sylvania, Inc. Ballast with filament heating control circuit
TWI345430B (en) * 2005-01-19 2011-07-11 Monolithic Power Systems Inc Method and apparatus for dc to ac power conversion for driving discharge lamps
US7061183B1 (en) 2005-03-31 2006-06-13 Microsemi Corporation Zigzag topology for balancing current among paralleled gas discharge lamps
US7173382B2 (en) * 2005-03-31 2007-02-06 Microsemi Corporation Nested balancing topology for balancing current among multiple lamps
US7439685B2 (en) * 2005-07-06 2008-10-21 Monolithic Power Systems, Inc. Current balancing technique with magnetic integration for fluorescent lamps
US7420829B2 (en) 2005-08-25 2008-09-02 Monolithic Power Systems, Inc. Hybrid control for discharge lamps
US7291991B2 (en) * 2005-10-13 2007-11-06 Monolithic Power Systems, Inc. Matrix inverter for driving multiple discharge lamps
CN1953631A (zh) * 2005-10-17 2007-04-25 美国芯源系统股份有限公司 一种适合冷阴极荧光灯背光应用的直流/交流电源装置
US7436127B2 (en) * 2005-11-03 2008-10-14 International Rectifier Corporation Ballast control circuit
US7423384B2 (en) 2005-11-08 2008-09-09 Monolithic Power Systems, Inc. Lamp voltage feedback system and method for open lamp protection and shorted lamp protection
US7414371B1 (en) 2005-11-21 2008-08-19 Microsemi Corporation Voltage regulation loop with variable gain control for inverter circuit
DE102005055831A1 (de) * 2005-11-23 2007-05-31 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektronisches Vorschaltgerät mit Betriebszustandsüberwachung und entsprechendes Verfahren
US7586268B2 (en) * 2005-12-09 2009-09-08 Lutron Electronics Co., Inc. Apparatus and method for controlling the filament voltage in an electronic dimming ballast
US7394203B2 (en) 2005-12-15 2008-07-01 Monolithic Power Systems, Inc. Method and system for open lamp protection
JP4985408B2 (ja) * 2006-01-25 2012-07-25 東芝ライテック株式会社 放電灯点灯装置および照明装置
JP2009528658A (ja) * 2006-02-28 2009-08-06 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 放電ランプを駆動するための方法および装置
US7619371B2 (en) * 2006-04-11 2009-11-17 Monolithic Power Systems, Inc. Inverter for driving backlight devices in a large LCD panel
US7804254B2 (en) * 2006-04-19 2010-09-28 Monolithic Power Systems, Inc. Method and circuit for short-circuit and over-current protection in a discharge lamp system
US7420337B2 (en) * 2006-05-31 2008-09-02 Monolithic Power Systems, Inc. System and method for open lamp protection
US7569998B2 (en) * 2006-07-06 2009-08-04 Microsemi Corporation Striking and open lamp regulation for CCFL controller
KR101263513B1 (ko) * 2006-08-30 2013-05-13 엘지디스플레이 주식회사 액정표시장치의 백라이트 구동 장치 및 방법
US8193719B2 (en) * 2006-09-05 2012-06-05 Microchip Technology Incorporated Using pulse density modulation for controlling dimmable electronic lighting ballasts
US7642735B2 (en) * 2006-09-05 2010-01-05 Microchip Technology Incorporated Using pulse density modulation for controlling dimmable electronic lighting ballasts
US7560867B2 (en) * 2006-10-17 2009-07-14 Access Business Group International, Llc Starter for a gas discharge light source
TWI381772B (zh) * 2006-12-12 2013-01-01 Ind Tech Res Inst 具調整氣體放電燈管電壓之預熱控制裝置
CN101207963B (zh) * 2006-12-22 2011-07-20 财团法人工业技术研究院 具调整气体放电灯管电压的预热控制装置
US7911149B2 (en) * 2007-02-19 2011-03-22 Marlex Engineering Inc. Impedance controlled electronic lamp circuit
US7288902B1 (en) 2007-03-12 2007-10-30 Cirrus Logic, Inc. Color variations in a dimmable lighting device with stable color temperature light sources
US7667408B2 (en) 2007-03-12 2010-02-23 Cirrus Logic, Inc. Lighting system with lighting dimmer output mapping
US7560868B2 (en) * 2007-05-11 2009-07-14 Osram Sylvania, Inc. Ballast with filament heating and ignition control
CN101321424B (zh) * 2007-06-05 2011-11-02 天钰信息科技（上海）有限公司 热阴极荧光灯灯丝电流控制电路
CN101453818B (zh) * 2007-11-29 2014-03-19 杭州茂力半导体技术有限公司 放电灯的电路保护和调节装置
TW200939886A (en) 2008-02-05 2009-09-16 Microsemi Corp Balancing arrangement with reduced amount of balancing transformers
US7956550B2 (en) * 2008-03-07 2011-06-07 General Electric Company Complementary application specific integrated circuit for compact fluorescent lamps
JP2009224130A (ja) * 2008-03-14 2009-10-01 Sanken Electric Co Ltd 放電管点灯装置
KR101565937B1 (ko) * 2008-07-28 2015-11-06 삼성디스플레이 주식회사 백라이트 어셈블리, 이를 포함하는 표시 장치 및 그의 구동방법
TWI403216B (zh) * 2008-10-14 2013-07-21 Chunghwa Picture Tubes Ltd 光源亮度控制電路及亮度控制方法
US8093839B2 (en) 2008-11-20 2012-01-10 Microsemi Corporation Method and apparatus for driving CCFL at low burst duty cycle rates
TW201043088A (en) * 2009-05-20 2010-12-01 Pixart Imaging Inc Light control system and control method thereof
JP5639177B2 (ja) * 2009-09-18 2014-12-10 コーニンクレッカ フィリップス エヌ ヴェ 電子バラスト調光回路
US9155174B2 (en) * 2009-09-30 2015-10-06 Cirrus Logic, Inc. Phase control dimming compatible lighting systems
US8274234B1 (en) 2009-12-08 2012-09-25 Universal Lighting Technologies, Inc. Dimming ballast with parallel lamp operation
US8378579B1 (en) 2010-02-18 2013-02-19 Universal Lighting Technologies, Inc. Ballast circuit for a gas discharge lamp with a control loop to reduce filament heating voltage below a maximum heating level
WO2012012195A2 (en) 2010-07-19 2012-01-26 Microsemi Corporation Led string driver arrangement with non-dissipative current balancer
US8536799B1 (en) 2010-07-30 2013-09-17 Cirrus Logic, Inc. Dimmer detection
US8729811B2 (en) 2010-07-30 2014-05-20 Cirrus Logic, Inc. Dimming multiple lighting devices by alternating energy transfer from a magnetic storage element
US8847515B2 (en) 2010-08-24 2014-09-30 Cirrus Logic, Inc. Multi-mode dimmer interfacing including attach state control
US9307601B2 (en) 2010-08-17 2016-04-05 Koninklijke Philips N.V. Input voltage sensing for a switching power converter and a triac-based dimmer
US20120043906A1 (en) * 2010-08-23 2012-02-23 Steven Daniel Jones Mixed-Signal Network for Generating Distributed Electrical Pulses
EP2636135B1 (de) 2010-11-04 2017-01-11 Philips Lighting Holding B.V. Sondierung des tastverhältnisses eines triac-dimmers
CN103201937B (zh) 2010-11-04 2017-02-15 皇家飞利浦有限公司 用于控制照明系统中的功率消耗的装置和方法
CN103262399B (zh) 2010-11-04 2017-02-15 皇家飞利浦有限公司 用于控制开关功率转换器中的能量消耗的方法和装置
EP2681969B1 (de) 2010-11-16 2019-01-09 Philips Lighting Holding B.V. Austrittskantendimmerkompatibilität mit hoher dimmerwiderstandsprognose
EP2653014B1 (de) 2010-12-16 2016-10-19 Philips Lighting Holding B.V. Übergänge zwischen dem discontinuous mode und dem critical conduction mode in abhängigkeit eines schaltparameters
US8754581B2 (en) 2011-05-03 2014-06-17 Microsemi Corporation High efficiency LED driving method for odd number of LED strings
WO2012151170A1 (en) 2011-05-03 2012-11-08 Microsemi Corporation High efficiency led driving method
NL2007337C2 (nl) 2011-09-02 2013-03-05 Nedap Nv Voorschakelapparaat voor een gasontladingslamp.
US9071144B2 (en) 2011-12-14 2015-06-30 Cirrus Logic, Inc. Adaptive current control timing and responsive current control for interfacing with a dimmer
US9167662B2 (en) 2012-02-29 2015-10-20 Cirrus Logic, Inc. Mixed load current compensation for LED lighting
US9184661B2 (en) 2012-08-27 2015-11-10 Cirrus Logic, Inc. Power conversion with controlled capacitance charging including attach state control
US9232607B2 (en) 2012-10-23 2016-01-05 Lutron Electronics Co., Inc. Gas discharge lamp ballast with reconfigurable filament voltage
TWI491305B (zh) * 2012-12-14 2015-07-01 碩頡科技股份有限公司 負載驅動裝置及其驅動方法
US9496844B1 (en) 2013-01-25 2016-11-15 Koninklijke Philips N.V. Variable bandwidth filter for dimmer phase angle measurements
US10187934B2 (en) 2013-03-14 2019-01-22 Philips Lighting Holding B.V. Controlled electronic system power dissipation via an auxiliary-power dissipation circuit
US9282598B2 (en) 2013-03-15 2016-03-08 Koninklijke Philips N.V. System and method for learning dimmer characteristics
US9621062B2 (en) 2014-03-07 2017-04-11 Philips Lighting Holding B.V. Dimmer output emulation with non-zero glue voltage
CA2965212A1 (en) 2016-04-26 2017-10-26 RAB Lighting Inc. Bi-level low voltage dimming controller for lighting drivers
CN114176490A (zh) * 2022-02-15 2022-03-15 极限人工智能(北京)有限公司 内窥镜氙灯光源的预热方法、氙灯光源及内窥镜

Family Cites Families (106)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5744915A (en) 1978-03-20 1998-04-28 Nilssen; Ole K. Electronic ballast for instant-start lamps
US5422546A (en) 1978-03-20 1995-06-06 Nilssen; Ole K. Dimmable parallel-resonant electric ballast
US5481160A (en) 1978-03-20 1996-01-02 Nilssen; Ole K. Electronic ballast with FET bridge inverter
US4464606A (en) 1981-03-25 1984-08-07 Armstrong World Industries, Inc. Pulse width modulated dimming arrangement for fluorescent lamps
US4535399A (en) 1983-06-03 1985-08-13 National Semiconductor Corporation Regulated switched power circuit with resonant load
US4541041A (en) 1983-08-22 1985-09-10 General Electric Company Full load to no-load control for a voltage fed resonant inverter
US4672528A (en) 1986-05-27 1987-06-09 General Electric Company Resonant inverter with improved control
US4864483A (en) 1986-09-25 1989-09-05 Wisconsin Alumni Research Foundation Static power conversion method and apparatus having essentially zero switching losses and clamped voltage levels
JPH07118915B2 (ja) 1987-01-30 1995-12-18 株式会社日立メデイコ 共振型ｄｃ−ｄｃコンバ−タ
US4727469A (en) 1987-03-23 1988-02-23 Reliance Comm/Tec Corporation Control for a series resonant power converter
US4933605A (en) * 1987-06-12 1990-06-12 Etta Industries, Inc. Fluorescent dimming ballast utilizing a resonant sine wave power converter
US4833584A (en) 1987-10-16 1989-05-23 Wisconsin Alumni Research Foundation Quasi-resonant current mode static power conversion method and apparatus
EP0415923B2 (de) 1987-10-29 2000-05-10 Rifala Pty. Ltd. Umwandler mit hohem wirkungsgrad
US4912622A (en) 1988-03-07 1990-03-27 General Electric Company Gate driver for a full-bridge lossless switching device
US4860189A (en) 1988-03-21 1989-08-22 International Business Machines Corp. Full bridge power converter circuit
US4814962A (en) 1988-05-27 1989-03-21 American Telephone And Telegraph Company, At&T Bell Laboratories Zero voltage switching half bridge resonant converter
US4952849A (en) 1988-07-15 1990-08-28 North American Philips Corporation Fluorescent lamp controllers
US5027263A (en) 1988-09-16 1991-06-25 Kyushu University Switching power source means
US4855888A (en) 1988-10-19 1989-08-08 Unisys Corporation Constant frequency resonant power converter with zero voltage switching
US5003230A (en) * 1989-05-26 1991-03-26 North American Philips Corporation Fluorescent lamp controllers with dimming control
FR2649277B1 (fr) 1989-06-30 1996-05-31 Thomson Csf Procede et dispositif de gradation de lumiere pour lampe fluorescente d'eclairage arriere d'ecran a cristaux liquides
US4935857A (en) 1989-08-22 1990-06-19 Sundstrand Corporation Transistor conduction-angle control for a series-parallel resonant converter
US5017800A (en) 1989-09-29 1991-05-21 Wisconsin Alumni Research Foundation AC to DC to AC power conversion apparatus with few active switches and input and output control
US5027264A (en) 1989-09-29 1991-06-25 Wisconsin Alumni Research Foundation Power conversion apparatus for DC/DC conversion using dual active bridges
US4953068A (en) 1989-11-08 1990-08-28 Unisys Corporation Full bridge power converter with multiple zero voltage resonant transition switching
US4992919A (en) 1989-12-29 1991-02-12 Lee Chu Quon Parallel resonant converter with zero voltage switching
US5030887A (en) * 1990-01-29 1991-07-09 Guisinger John E High frequency fluorescent lamp exciter
US5198969A (en) 1990-07-13 1993-03-30 Design Automation, Inc. Soft-switching full-bridge dc/dc converting
US5231563A (en) 1990-09-07 1993-07-27 Itt Corporation Square wave converter having an improved zero voltage switching operation
US5132888A (en) 1991-01-07 1992-07-21 Unisys Corporation Interleaved bridge converter
US5291382A (en) 1991-04-10 1994-03-01 Lambda Electronics Inc. Pulse width modulated DC/DC converter with reduced ripple current coponent stress and zero voltage switching capability
US5132889A (en) 1991-05-15 1992-07-21 Ibm Corporation Resonant-transition DC-to-DC converter
US5208740A (en) 1991-05-30 1993-05-04 The Texas A & M University System Inverse dual converter for high-power applications
US5235501A (en) 1991-07-19 1993-08-10 The University Of Toledo High efficiency voltage converter
US5157592A (en) 1991-10-15 1992-10-20 International Business Machines Corporation DC-DC converter with adaptive zero-voltage switching
US5285372A (en) 1991-10-23 1994-02-08 Henkel Corporation Power supply for an ozone generator with a bridge inverter
US5384516A (en) 1991-11-06 1995-01-24 Hitachi, Ltd. Information processing apparatus including a control circuit for controlling a liquid crystal display illumination based on whether illuminatio power is being supplied from an AC power source or from a battery
US5448467A (en) 1992-04-13 1995-09-05 Ferreira; Jan A. Electrical power converter circuit
US5268830A (en) 1992-04-20 1993-12-07 At&T Bell Laboratories Drive circuit for power switches of a zero-voltage switching power converter
US5305191A (en) 1992-04-20 1994-04-19 At&T Bell Laboratories Drive circuit for zero-voltage switching power converter with controlled power switch turn-on
US5430641A (en) 1992-04-27 1995-07-04 Dell Usa, L.P. Synchronously switching inverter and regulator
US5412557A (en) 1992-10-14 1995-05-02 Electronic Power Conditioning, Inc. Unipolar series resonant converter
US5448155A (en) 1992-10-23 1995-09-05 International Power Devices, Inc. Regulated power supply using multiple load sensing
US5402329A (en) 1992-12-09 1995-03-28 Ernest H. Wittenbreder, Jr. Zero voltage switching pulse width modulated power converters
US5363020A (en) 1993-02-05 1994-11-08 Systems And Service International, Inc. Electronic power controller
US5420779A (en) 1993-03-04 1995-05-30 Dell Usa, L.P. Inverter current load detection and disable circuit
CA2096559C (en) 1993-05-19 1999-03-02 Daniel Pringle Resonant unity power factor converter
KR960010713B1 (ko) 1993-08-17 1996-08-07 삼성전자 주식회사 공진형 컨버터의 영전압 스위칭 제어장치 및 이를 이용한 전자식 안정기
US5418703A (en) 1993-08-31 1995-05-23 International Business Machines Corp. DC-DC converter with reset control for enhanced zero-volt switching
US5394064A (en) 1993-10-15 1995-02-28 Micro-Technology Inc.-Wisconsin Electronic ballast circuit for fluorescent lamps
US5426350A (en) * 1993-11-18 1995-06-20 Electric Power Research Institute, Inc. High frequency transformerless electronics ballast using double inductor-capacitor resonant power conversion for gas discharge lamps
US5416387A (en) * 1993-11-24 1995-05-16 California Institute Of Technology Single stage, high power factor, gas discharge lamp ballast
US5510974A (en) 1993-12-28 1996-04-23 Philips Electronics North America Corporation High frequency push-pull converter with input power factor correction
US5583402A (en) * 1994-01-31 1996-12-10 Magnetek, Inc. Symmetry control circuit and method
AUPM364394A0 (en) 1994-02-01 1994-02-24 Unisearch Limited Improved power converter with soft switching
ATE196052T1 (de) 1994-04-29 2000-09-15 Andre Bonnet Statischer wandler mit gesteuertem schalter und steuerungsschaltung
JPH10501958A (ja) 1994-05-11 1998-02-17 ビー アンド ダブリュー ラウドスピーカーズ リミテッド 被制御型整流回路
CH688952B5 (fr) 1994-05-26 1998-12-31 Ebauchesfabrik Eta Ag Circuit d'alimentation pour une feuille électroluminescente.
CA2124370C (en) 1994-05-26 1998-09-29 Ivan Meszlenyi Self oscillating dc to dc converter
JP3027298B2 (ja) 1994-05-31 2000-03-27 シャープ株式会社 バックライト制御機能付き液晶表示装置
US5514921A (en) 1994-06-27 1996-05-07 General Electric Company Lossless gate drivers for high-frequency PWM switching cells
US5615093A (en) * 1994-08-05 1997-03-25 Linfinity Microelectronics Current synchronous zero voltage switching resonant topology
KR0137917B1 (ko) 1994-10-28 1998-05-15 김광호 액정표시소자의 후면광원 구동회로
US5844378A (en) 1995-01-25 1998-12-01 Micro Linear Corp High side driver technique for miniature cold cathode fluorescent lamp system
JP2757810B2 (ja) 1995-03-08 1998-05-25 日本電気株式会社 電源装置
US5650694A (en) * 1995-03-31 1997-07-22 Philips Electronics North America Corporation Lamp controller with lamp status detection and safety circuitry
US5559395A (en) 1995-03-31 1996-09-24 Philips Electronics North America Corporation Electronic ballast with interface circuitry for phase angle dimming control
FR2733095B1 (fr) 1995-04-11 1997-05-09 Alcatel Converters Dispositif a inductance variable et utilisation de ce dispositif pour la realisation d'une source de courant pour cellule de commutation a tension nulle
US5694007A (en) 1995-04-19 1997-12-02 Systems And Services International, Inc. Discharge lamp lighting system for avoiding high in-rush current
KR0148053B1 (ko) 1995-05-12 1998-09-15 김광호 액정 표시 소자의 후면 광원 구동 제어 장치 및 그 방법
US5638260A (en) 1995-05-19 1997-06-10 Electronic Measurements, Inc. Parallel resonant capacitor charging power supply operating above the resonant frequency
US5834889A (en) 1995-09-22 1998-11-10 Gl Displays, Inc. Cold cathode fluorescent display
JP2914251B2 (ja) 1995-10-31 1999-06-28 日本電気株式会社 インバータ装置
DE19543419A1 (de) 1995-11-21 1997-05-22 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren und Schaltungsanordnung zum Betreiben von Kaltkathoden-Glimmleuchtstofflampen
KR0177873B1 (ko) 1995-12-02 1999-05-15 변승봉 순환전류 프리형 고주파 소프트 스위칭FB(Full Bridge)DC-DC컨버터
US5875103A (en) 1995-12-22 1999-02-23 Electronic Measurements, Inc. Full range soft-switching DC-DC converter
WO1997024016A1 (en) 1995-12-26 1997-07-03 General Electric Company Control and protection of dimmable electronic fluorescent lamp ballast with wide input voltage range and wide dimming range
IT1289479B1 (it) 1996-01-26 1998-10-15 Schlafhorst & Co W Disposizione circuitale di trasformazione di tensione per la alimentazione energetica di un utilizzatore elettrico di elevata
US5684683A (en) 1996-02-09 1997-11-04 Wisconsin Alumni Research Foundation DC-to-DC power conversion with high current output
US5669238A (en) 1996-03-26 1997-09-23 Phillips Petroleum Company Heat exchanger controls for low temperature fluids
US5781419A (en) 1996-04-12 1998-07-14 Soft Switching Technologies, Inc. Soft switching DC-to-DC converter with coupled inductors
US5619402A (en) 1996-04-16 1997-04-08 O2 Micro, Inc. Higher-efficiency cold-cathode fluorescent lamp power supply
US5784266A (en) 1996-06-14 1998-07-21 Virginia Power Technologies, Inc Single magnetic low loss high frequency converter
US5719474A (en) 1996-06-14 1998-02-17 Loral Corporation Fluorescent lamps with current-mode driver control
US5747942A (en) * 1996-07-10 1998-05-05 Enersol Systems, Inc. Inverter for an electronic ballast having independent start-up and operational output voltages
US5736842A (en) 1996-07-11 1998-04-07 Delta Electronics, Inc. Technique for reducing rectifier reverse-recovery-related losses in high-voltage high power converters
US5715155A (en) 1996-10-28 1998-02-03 Norax Canada Inc. Resonant switching power supply circuit
US5920155A (en) * 1996-10-28 1999-07-06 Matsushita Electric Works, Ltd. Electronic ballast for discharge lamps
KR100199506B1 (ko) 1996-10-29 1999-06-15 윤문수 출력전류의 리플 저감이 가능한 풀 브릿지 디씨이/디씨이컨버터의 영전압/영전류 스위칭을 위한 회로
US5781418A (en) 1996-12-23 1998-07-14 Philips Electronics North America Corporation Switching scheme for power supply having a voltage-fed inverter
US5894412A (en) 1996-12-31 1999-04-13 Compaq Computer Corp System with open-loop DC-DC converter stage
US5932976A (en) 1997-01-14 1999-08-03 Matsushita Electric Works R&D Laboratory, Inc. Discharge lamp driving
US5748457A (en) 1997-01-24 1998-05-05 Poon; Franki Ngai Kit Family of zero voltage switching DC to DC converters
US5774346A (en) 1997-01-24 1998-06-30 Poon; Franki Ngai Kit Family of zero voltage switching DC to DC converters with coupled output inductor
US5880940A (en) 1997-02-05 1999-03-09 Computer Products, Inc. Low cost high efficiency power converter
US6011360A (en) 1997-02-13 2000-01-04 Philips Electronics North America Corporation High efficiency dimmable cold cathode fluorescent lamp ballast
US5764494A (en) 1997-03-13 1998-06-09 Lockheed Martin Corporation Saturable reactor and converter for use thereof
US5930121A (en) 1997-03-14 1999-07-27 Linfinity Microelectronics Direct drive backlight system
US5923129A (en) 1997-03-14 1999-07-13 Linfinity Microelectronics Apparatus and method for starting a fluorescent lamp
US6020689A (en) * 1997-04-10 2000-02-01 Philips Electronics North America Corporation Anti-flicker scheme for a fluorescent lamp ballast driver
US5982110A (en) * 1997-04-10 1999-11-09 Philips Electronics North America Corporation Compact fluorescent lamp with overcurrent protection
JP3216572B2 (ja) 1997-05-27 2001-10-09 日本電気株式会社 圧電トランスの駆動回路
US5939830A (en) 1997-12-24 1999-08-17 Honeywell Inc. Method and apparatus for dimming a lamp in a backlight of a liquid crystal display
DE19900153A1 (de) * 1998-01-05 1999-07-15 Int Rectifier Corp Integrierte Gate-Treiberschaltung
US6114814A (en) 1998-12-11 2000-09-05 Monolithic Power Systems, Inc. Apparatus for controlling a discharge lamp in a backlighted display
US6326740B1 (en) * 1998-12-22 2001-12-04 Philips Electronics North America Corporation High frequency electronic ballast for multiple lamp independent operation

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CN1809239A (zh) 2006-07-26
CN1457623A (zh) 2003-11-19
US20020140371A1 (en) 2002-10-03
TW507472B (en) 2002-10-21
DE60122727D1 (de) 2006-10-12
HK1087886A1 (zh) 2006-10-20
AU2001251230A1 (en) 2001-11-26
WO2001089271A1 (en) 2001-11-22
US6531831B2 (en) 2003-03-11
DE60122727T2 (de) 2007-09-13
EP1300055A4 (de) 2003-09-10
EP1300055A1 (de) 2003-04-09
CN100591187C (zh) 2010-02-17
CN1251558C (zh) 2006-04-12
EP1300055B1 (de) 2006-08-30

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