DE3888278D1 - Hochfrequenzvorschaltgerät für Entladungsgaslampen. - Google Patents

Hochfrequenzvorschaltgerät für Entladungsgaslampen.

Info

Publication number
DE3888278D1
DE3888278D1 DE88309375T DE3888278T DE3888278D1 DE 3888278 D1 DE3888278 D1 DE 3888278D1 DE 88309375 T DE88309375 T DE 88309375T DE 3888278 T DE3888278 T DE 3888278T DE 3888278 D1 DE3888278 D1 DE 3888278D1
Authority
DE
Germany
Prior art keywords
frequency
current
switches
varies
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE88309375T
Other languages
English (en)
Other versions
DE3888278T2 (de
Inventor
Thomas E Dean
William H Henrich
Herbert E Pietsch
David M Fischer David Fischer
Lawrence J Stratton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advance Transformer Co
Original Assignee
Advance Transformer Co
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 Advance Transformer Co filed Critical Advance Transformer Co
Publication of DE3888278D1 publication Critical patent/DE3888278D1/de
Application granted granted Critical
Publication of DE3888278T2 publication Critical patent/DE3888278T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit 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
    • H05B41/282Circuit 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
    • H05B41/285Arrangements for protecting lamps or circuits against abnormal operating conditions
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit 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
    • H05B41/282Circuit 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
    • H05B41/285Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2856Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against internal abnormal circuit conditions
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit 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
    • H05B41/282Circuit 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
    • H05B41/285Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2858Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00Electric lamp and discharge devices: systems
    • Y10S315/07Starting and control circuits for gas discharge lamp using transistors
DE3888278T 1987-10-08 1988-10-07 Hochfrequenzvorschaltgerät für Entladungsgaslampen. Expired - Fee Related DE3888278T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/106,180 US4873471A (en) 1986-03-28 1987-10-08 High frequency ballast for gaseous discharge lamps

Publications (2)

Publication Number Publication Date
DE3888278D1 true DE3888278D1 (de) 1994-04-14
DE3888278T2 DE3888278T2 (de) 1994-09-29

Family

ID=22309954

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3888278T Expired - Fee Related DE3888278T2 (de) 1987-10-08 1988-10-07 Hochfrequenzvorschaltgerät für Entladungsgaslampen.

Country Status (4)

Country Link
US (1) US4873471A (de)
EP (1) EP0311424B1 (de)
AT (1) ATE102781T1 (de)
DE (1) DE3888278T2 (de)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1327991C (en) * 1986-03-28 1994-03-22 Thomas E. Dean High frequency ballast for gaseous discharge lamps
IN171097B (de) * 1989-03-16 1992-07-18 Holec Syst & Componenten
US4970439A (en) * 1989-04-28 1990-11-13 Minnesota Mining And Manufacturing Company Power supply circuit for a gaseous discharge tube device
US5198726A (en) * 1990-10-25 1993-03-30 U.S. Philips Corporation Electronic ballast circuit with lamp dimming control
NL9002681A (nl) * 1990-12-05 1992-07-01 Nedap Nv Voorschakelapparaat voor fluorescentielampen.
DE4101980A1 (de) * 1991-01-24 1992-08-06 Trilux Lenze Gmbh & Co Kg Wechselspannungs-vorschaltgeraet fuer elektrische entladungslampen
US5138234A (en) * 1991-05-28 1992-08-11 Motorola, Inc. Circuit for driving a gas discharge lamp load
US5148087A (en) * 1991-05-28 1992-09-15 Motorola, Inc. Circuit for driving a gas discharge lamp load
US5128592A (en) * 1991-07-18 1992-07-07 Thomas Industries Inc. High frequency ballast for gaseous discharge lamps
DE4128314A1 (de) * 1991-08-27 1993-03-04 Diehl Gmbh & Co Stromversorgungsschaltung
IT1250520B (it) * 1991-12-11 1995-04-08 Marelli Autronica Circuito auto-oscillante per il comando di una lampada a scarica di gas,particolarmente per l'impiego a bordo di un autoveicolo.
JP3026681B2 (ja) * 1992-06-30 2000-03-27 三洋電機株式会社 蛍光灯制御装置
US5287040A (en) * 1992-07-06 1994-02-15 Lestician Ballast, Inc. Variable control, current sensing ballast
EP0596152B1 (de) * 1992-11-06 1998-06-10 TRILUX-LENZE GmbH & Co. KG Wechselspannungs-Vorschaltgerät für elektrische Entladungslampen
US6377087B1 (en) * 1993-01-19 2002-04-23 U.S. Philips Corporation Driving scheme for bipolar transistors
US5404082A (en) * 1993-04-23 1995-04-04 North American Philips Corporation High frequency inverter with power-line-controlled frequency modulation
DE69413105T2 (de) * 1993-04-23 1999-04-15 Koninkl Philips Electronics Nv Schaltung zur Leistungsfaktorverbesserung
US5410221A (en) * 1993-04-23 1995-04-25 Philips Electronics North America Corporation Lamp ballast with frequency modulated lamp frequency
CA2095793A1 (fr) * 1993-05-07 1994-11-08 Raymond Berthiaume Ballast electronique pour tube fluorescent
US5545955A (en) * 1994-03-04 1996-08-13 International Rectifier Corporation MOS gate driver for ballast circuits
EP0677982B1 (de) * 1994-04-15 2000-02-09 Knobel Ag Lichttechnische Komponenten Verfahren zum Betrieb eines Vorschaltgeräts für Entladungslampen
US5612597A (en) * 1994-12-29 1997-03-18 International Rectifier Corporation Oscillating driver circuit with power factor correction, electronic lamp ballast employing same and driver method
JP3543236B2 (ja) * 1995-03-06 2004-07-14 株式会社キジマ プッシュプルインバ−タ
US5703441A (en) * 1995-11-02 1997-12-30 General Electric Company Multi-function filament-heater power supply for an electronic ballast for long-life dimmerable lamps
ES2187633T3 (es) * 1996-08-13 2003-06-16 Magnetek Spa Inversor para el suministro de energia a lamparas de descarga con medios para mejorar el factor de potencia.
US6091206A (en) * 1996-12-27 2000-07-18 Susan Siao Electronic ballast system for fluorescent lamps
US6172468B1 (en) 1997-01-14 2001-01-09 Metrolight Ltd. Method and apparatus for igniting a gas discharge lamp
FR2761564B1 (fr) * 1997-03-27 2001-07-27 Jacques Emile Boudan Systeme et appareil d'alimentation des lampes a decharge d'un reseau d'eclairage
JP4252117B2 (ja) * 1997-05-16 2009-04-08 株式会社デンソー 放電灯装置
US6127788A (en) 1997-05-15 2000-10-03 Denso Corporation High voltage discharge lamp device
US5939837A (en) * 1997-07-15 1999-08-17 Magnetek, Inc. Electronic ballast circuit for independently increasing the power factor and decreasing the crest factor
CA2297255A1 (en) * 1997-07-23 1999-02-04 Yeung, Anne Chon My Electronic ballast system
EP0984670B1 (de) 1998-06-13 2009-12-09 Greenwood Soar IP Limited Vorschaltgerät für eine Starkstromentladungslampe
US6495971B1 (en) 1998-06-13 2002-12-17 Hatch Transformers, Inc. High intensity discharge lamp ballast
US6294867B1 (en) 1999-01-25 2001-09-25 Judd Lynn Flourescent lamp with uniform output
US7091676B2 (en) * 2001-03-15 2006-08-15 The Bodine Company, Inc. Arc maintenance device for high density discharge lamps including an adaptive wave form monitor
CN100397276C (zh) * 2002-11-06 2008-06-25 台达电子工业股份有限公司 电子式电源稳压器
US6969956B1 (en) * 2004-05-07 2005-11-29 Zippy Technology Corp. Current control apparatus for fluorescent lamps
US20050264217A1 (en) * 2004-06-01 2005-12-01 Huston Trevor L Controller for power protection
US7589480B2 (en) * 2006-05-26 2009-09-15 Greenwood Soar Ip Ltd. High intensity discharge lamp ballast
US7911808B2 (en) * 2007-02-10 2011-03-22 Active-Semi, Inc. Primary side constant output current controller with highly improved accuracy
FI121049B (fi) 2007-10-04 2010-06-15 Helvar Oy Ab Elektroninen liitäntälaite
US7843141B1 (en) 2007-11-19 2010-11-30 Universal Lighting Technologies, Inc. Low cost step dimming interface for an electronic ballast
US8049432B2 (en) * 2008-09-05 2011-11-01 Lutron Electronics Co., Inc. Measurement circuit for an electronic ballast
US8049430B2 (en) 2008-09-05 2011-11-01 Lutron Electronics Co., Inc. Electronic ballast having a partially self-oscillating inverter circuit
US8067902B2 (en) * 2008-09-05 2011-11-29 Lutron Electronics Co., Inc. Electronic ballast having a symmetric topology
FI121561B (fi) 2009-06-30 2010-12-31 Helvar Oy Ab Elektronisen liitäntälaitteen toimintojen säätäminen ja mittaaminen
JP5429391B2 (ja) * 2010-09-22 2014-02-26 株式会社島津製作所 高周波電源
US9541603B2 (en) * 2013-07-10 2017-01-10 Apple Inc. Method and apparatus for power glitch detection in integrated circuits

Family Cites Families (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928994A (en) * 1956-10-22 1960-03-15 Widakowich Marius Transistor inverters for feeding fluorescent tubes
US3047789A (en) * 1959-11-25 1962-07-31 Gen Electric Inverter circuit
US3072822A (en) * 1961-05-19 1963-01-08 Julian C Holmes Emission current regulator
US3265930A (en) * 1962-05-03 1966-08-09 Gen Electric Current level switching apparatus for operating electric discharge lamps
US3449629A (en) * 1968-05-16 1969-06-10 Westinghouse Electric Corp Light,heat and temperature control systems
US3541421A (en) * 1968-07-10 1970-11-17 Union Carbide Corp High power factor circuit for reactive loads
US3648106A (en) * 1970-02-24 1972-03-07 Westinghouse Electric Corp Dynamic reactorless high-frequency vapor lamp ballast
US3611021A (en) * 1970-04-06 1971-10-05 North Electric Co Control circuit for providing regulated current to lamp load
US3662216A (en) * 1970-06-18 1972-05-09 Gen Electric Alternating current power modulator with parallel lc circuit controlling the relative phase of voltage and current applied to switching means
US3684919A (en) * 1970-12-10 1972-08-15 Berkey Colortran Mfg Inc Dimmer circuit
US3681654A (en) * 1971-02-18 1972-08-01 Wagner Electric Corp Light-regulating power supply circuit for gaseous discharge lamp
BE786136A (nl) * 1971-07-13 1973-01-11 Philips Nv Inrichting voor het voeden van tenminste een gas- en/of dampontladingslamp
US3719858A (en) * 1971-08-02 1973-03-06 Hunt Electronics Co Overload protection system for a light dimmer unit
US3890562A (en) * 1972-11-13 1975-06-17 Gen Electric Regulated power supply utilizing a halfwave switch
US3821601A (en) * 1973-06-13 1974-06-28 Westinghouse Electric Corp Regulated dimmer for incandescent lamps
US3879652A (en) * 1973-08-13 1975-04-22 Westinghouse Electric Corp AC solid state power controller with minimized internal power supply requirements
US3904922A (en) * 1973-11-19 1975-09-09 Xerox Corp Lamp control and lamp switch circuit
US3890537A (en) * 1974-01-02 1975-06-17 Gen Electric Solid state chopper ballast for gaseous discharge lamps
US3969652A (en) * 1974-01-04 1976-07-13 General Electric Company Electronic ballast for gaseous discharge lamps
US3885197A (en) * 1974-02-01 1975-05-20 Lear Siegler Inc Light dimmer
US3936726A (en) * 1974-09-03 1976-02-03 General Electric Company Gating control for a static switching arrangement with improved dynamic response
US3999100A (en) * 1975-05-19 1976-12-21 Morton B. Leskin Lamp power supply using a switching regulator and commutator
US4004188A (en) * 1975-09-26 1977-01-18 General Electric Company Starting circuit for inverter operated gaseous discharge lamps
US4042856A (en) * 1975-10-28 1977-08-16 General Electric Company Chopper ballast for gaseous discharge lamps with auxiliary capacitor energy storage
US4329627A (en) * 1976-02-02 1982-05-11 Esquire, Inc. High frequency thyristor circuit for energizing a gaseous discharge lamp
US4060752A (en) * 1976-03-01 1977-11-29 General Electric Company Discharge lamp auxiliary circuit with dI/dt switching control
JPS52119127A (en) * 1976-03-30 1977-10-06 Zuiia Asoshieiteizu Inc Device for operating gas discharge lamp
FR2345003A1 (fr) * 1977-02-25 1977-10-14 Gte Sylvania Inc Circuit auto-oscillateur reglable
US4200830A (en) * 1977-08-10 1980-04-29 Esb Incorporated Series resonant battery charger and control therefor
US4253046A (en) * 1978-12-11 1981-02-24 Datapower, Inc. Variable intensity control apparatus for operating a gas discharge lamp
US4238710A (en) * 1978-12-27 1980-12-09 Datapower, Inc. Symmetry regulated high frequency ballast
US4240009A (en) * 1978-02-27 1980-12-16 Paul Jon D Electronic ballast
US4277728A (en) * 1978-05-08 1981-07-07 Stevens Luminoptics Power supply for a high intensity discharge or fluorescent lamp
US4220896A (en) * 1978-08-16 1980-09-02 The United States Of America As Represented By The Secretary Of The Interior High frequency lighting inverter with constant power ballast
US4287468A (en) * 1978-08-28 1981-09-01 Robert Sherman Dimmer control system
US4210846A (en) * 1978-12-05 1980-07-01 Lutron Electronics Co., Inc. Inverter circuit for energizing and dimming gas discharge lamps
CH637251A5 (de) * 1978-12-22 1983-07-15 Contrinex Sa Stromversorgungsanordnung zur speisung einer induktiven oder ohmisch-induktiven last.
DE2909605A1 (de) * 1979-03-12 1980-09-25 Patra Patent Treuhand Vorschaltanordnung zum betreiben einer entladungslampe
US4251752A (en) * 1979-05-07 1981-02-17 Synergetics, Inc. Solid state electronic ballast system for fluorescent lamps
DE2922219C3 (de) * 1979-05-31 1982-03-11 Siemens AG, 1000 Berlin und 8000 München Elektronischer Sensor-Ein/Aus-Schalter
US4417181A (en) * 1979-07-06 1983-11-22 Sonelt Corporation Electronic ballast
US4259614A (en) * 1979-07-20 1981-03-31 Kohler Thomas P Electronic ballast-inverter for multiple fluorescent lamps
JPS5919639B2 (ja) * 1979-09-28 1984-05-08 東芝ライテック株式会社 放電灯点灯装置
US4358716A (en) * 1980-04-14 1982-11-09 White Castle System, Inc. Adjustable electrical power control for gas discharge lamps and the like
US4356433A (en) * 1980-07-07 1982-10-26 The Nuarc Company, Inc. HID Lamp power supply
JPS6057674B2 (ja) * 1980-09-26 1985-12-16 東芝ライテック株式会社 放電灯点灯装置
US4477748A (en) * 1980-10-07 1984-10-16 Thomas Industries, Inc. Solid state ballast
US4366570A (en) * 1980-11-13 1982-12-28 Candela Corporation Series inverter for capacitor charging
US4463286A (en) * 1981-02-04 1984-07-31 North American Philips Lighting Corporation Lightweight electronic ballast for fluorescent lamps
US4464606A (en) * 1981-03-25 1984-08-07 Armstrong World Industries, Inc. Pulse width modulated dimming arrangement for fluorescent lamps
US4388563A (en) * 1981-05-26 1983-06-14 Commodore Electronics, Ltd. Solid-state fluorescent lamp ballast
US4414493A (en) * 1981-10-06 1983-11-08 Thomas Industries Inc. Light dimmer for solid state ballast
DE3142613A1 (de) * 1981-10-28 1983-05-05 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zum zuenden und betrieb einer niederdruckquecksilberdampfentladungslampe
US4415839A (en) * 1981-11-23 1983-11-15 Lesea Ronald A Electronic ballast for gaseous discharge lamps
DE3149526A1 (de) * 1981-12-14 1983-06-23 Philips Patentverwaltung Schaltungsanordnung zum betrieb von hochdruck-gasentladungslampen
GB2117192B (en) * 1982-02-26 1986-01-02 Transtar Limited Lamp control circuit
US4435749A (en) * 1982-02-26 1984-03-06 Thomas Industries Inc. High frequency inverter fault protection system
US4441054A (en) * 1982-04-12 1984-04-03 Gte Products Corporation Stabilized dimming circuit for lamp ballasts
NL8201631A (nl) * 1982-04-20 1983-11-16 Philips Nv Gelijkstroom-wisselstroomomzetter voor het ontsteken en met wisselstroom voeden van een gas- en/of dampontladingslamp.
US4560908A (en) * 1982-05-27 1985-12-24 North American Philips Corporation High-frequency oscillator-inverter ballast circuit for discharge lamps
US4453109A (en) * 1982-05-27 1984-06-05 North American Philips Corporation Magnetic transformer switch and combination thereof with a discharge lamp
US4442382A (en) * 1982-07-06 1984-04-10 Chiu Technical Corporation Constant power switching power supply
US4484108A (en) * 1982-08-02 1984-11-20 North American Philips Corporation High frequency ballast-ignition system for discharge lamps
US4461980A (en) * 1982-08-25 1984-07-24 Nilssen Ole K Protection circuit for series resonant electronic ballasts
US4523131A (en) * 1982-12-10 1985-06-11 Honeywell Inc. Dimmable electronic gas discharge lamp ballast
US4498031A (en) * 1983-01-03 1985-02-05 North American Philips Corporation Variable frequency current control device for discharge lamps
US4585974A (en) * 1983-01-03 1986-04-29 North American Philips Corporation Varible frequency current control device for discharge lamps
DE3312575A1 (de) * 1983-01-08 1984-07-12 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg Elektronisches vorschaltgeraet fuer leuchtstofflampen
US4506195A (en) * 1983-02-04 1985-03-19 North American Philips Lighting Corporation Apparatus for operating HID lamp at high frequency with high power factor and for providing standby lighting
US4591963A (en) * 1984-04-23 1986-05-27 At&T Bell Laboratories Technique for reducing line current harmonics at input to power supply acting as nonlinear load
US4682084A (en) * 1985-08-28 1987-07-21 Innovative Controls, Incorporated High intensity discharge lamp self-adjusting ballast system sensitive to the radiant energy or heat of the lamp
CA1327991C (en) * 1986-03-28 1994-03-22 Thomas E. Dean High frequency ballast for gaseous discharge lamps

Also Published As

Publication number Publication date
EP0311424A2 (de) 1989-04-12
ATE102781T1 (de) 1994-03-15
EP0311424B1 (de) 1994-03-09
EP0311424A3 (en) 1989-10-18
DE3888278T2 (de) 1994-09-29
US4873471A (en) 1989-10-10

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