WO1998025442A3 - Industrial voltage ballast circuit with passive power factor correction - Google Patents

Industrial voltage ballast circuit with passive power factor correction Download PDF

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Publication number
WO1998025442A3
WO1998025442A3 PCT/US1997/022144 US9722144W WO9825442A3 WO 1998025442 A3 WO1998025442 A3 WO 1998025442A3 US 9722144 W US9722144 W US 9722144W WO 9825442 A3 WO9825442 A3 WO 9825442A3
Authority
WO
WIPO (PCT)
Prior art keywords
ballast circuit
power factor
factor correction
passive power
industrial voltage
Prior art date
Application number
PCT/US1997/022144
Other languages
French (fr)
Other versions
WO1998025442A2 (en
Inventor
Mihail S Moisin
Original Assignee
Pacific Scientific 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 Pacific Scientific Co filed Critical Pacific Scientific Co
Publication of WO1998025442A2 publication Critical patent/WO1998025442A2/en
Publication of WO1998025442A3 publication Critical patent/WO1998025442A3/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • 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
    • H05B41/282—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2855—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
    • H05B41/26—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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

An improved ballast circuit (100) controls the power delivered to a fluorescent lamp for use in industrial plants where the input voltage is on the order of 347 volts. The ballast circuit comprises passive power factor correction (120) to increase the overall power factor of the circuit to above 95 % while also reducing the total harmonic distortion to less than 20 %. The ballast circuit protects the fluorescent lamps from overvoltage when the lamps are nearing the end of their lifetime, or burnout. Adaptations to connect compact fluorescent lamps are also included.
PCT/US1997/022144 1996-12-06 1997-12-05 Industrial voltage ballast circuit with passive power factor correction WO1998025442A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76165896A 1996-12-06 1996-12-06
US08/761,658 1996-12-06

Publications (2)

Publication Number Publication Date
WO1998025442A2 WO1998025442A2 (en) 1998-06-11
WO1998025442A3 true WO1998025442A3 (en) 1998-08-20

Family

ID=25062889

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/022144 WO1998025442A2 (en) 1996-12-06 1997-12-05 Industrial voltage ballast circuit with passive power factor correction

Country Status (1)

Country Link
WO (1) WO1998025442A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5084653A (en) * 1990-07-18 1992-01-28 Nilssen Ole K Power-line-isolated dimmable electronic ballast
US5387847A (en) * 1994-03-04 1995-02-07 International Rectifier Corporation Passive power factor ballast circuit for the gas discharge lamps
US5608295A (en) * 1994-09-02 1997-03-04 Valmont Industries, Inc. Cost effective high performance circuit for driving a gas discharge lamp load
US5686799A (en) * 1994-03-25 1997-11-11 Pacific Scientific Company Ballast circuit for compact fluorescent lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5084653A (en) * 1990-07-18 1992-01-28 Nilssen Ole K Power-line-isolated dimmable electronic ballast
US5387847A (en) * 1994-03-04 1995-02-07 International Rectifier Corporation Passive power factor ballast circuit for the gas discharge lamps
US5686799A (en) * 1994-03-25 1997-11-11 Pacific Scientific Company Ballast circuit for compact fluorescent lamp
US5608295A (en) * 1994-09-02 1997-03-04 Valmont Industries, Inc. Cost effective high performance circuit for driving a gas discharge lamp load

Also Published As

Publication number Publication date
WO1998025442A2 (en) 1998-06-11

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