WO1999030539A3 - Method and apparatus for power factor correction - Google Patents

Method and apparatus for power factor correction Download PDF

Info

Publication number
WO1999030539A3
WO1999030539A3 PCT/US1998/022260 US9822260W WO9930539A3 WO 1999030539 A3 WO1999030539 A3 WO 1999030539A3 US 9822260 W US9822260 W US 9822260W WO 9930539 A3 WO9930539 A3 WO 9930539A3
Authority
WO
WIPO (PCT)
Prior art keywords
ballast
primary winding
voltage
charge
rectified
Prior art date
Application number
PCT/US1998/022260
Other languages
French (fr)
Other versions
WO1999030539A2 (en
Inventor
John R Shannon
Original Assignee
Electronic Lighting 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 Electronic Lighting Inc filed Critical Electronic Lighting Inc
Publication of WO1999030539A2 publication Critical patent/WO1999030539A2/en
Publication of WO1999030539A3 publication Critical patent/WO1999030539A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/425—Arrangements for improving power factor of AC input using a single converter stage both for correction of AC input power factor and generation of a high frequency AC output voltage
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Dc-Dc Converters (AREA)

Abstract

A power control circuit for controlling the power drawn by a load such as a lamp control ballast from a source of rectified A.C. voltage source provided on a voltage supply line. The power control circuit includes a keep-alive portion having a capacitor which receives and stores charge during intervals when the rectified A.C. voltage exceeds a threshold level, and discharges to support operation of the ballast during intervals when the rectified A.C. voltage is below the threshold level. The capacitor receives charge from the current flowing through the primary winding of the ballast transformer. The power control circuit also includes a feedback capacitor connected between the primary winding of the ballast transformer and the active line of the power supply to store a feedback charge when the current through the primary winding of the ballast transformer flows in a first direction and to discharge the feedback charge to the voltage supply line when the current through the primary winding of the ballast transformer flows in a second direction.
PCT/US1998/022260 1997-12-08 1998-11-20 Method and apparatus for power factor correction WO1999030539A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US98679997A 1997-12-08 1997-12-08
US08/986,799 1997-12-08

Publications (2)

Publication Number Publication Date
WO1999030539A2 WO1999030539A2 (en) 1999-06-17
WO1999030539A3 true WO1999030539A3 (en) 1999-08-12

Family

ID=25532753

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/022260 WO1999030539A2 (en) 1997-12-08 1998-11-20 Method and apparatus for power factor correction

Country Status (1)

Country Link
WO (1) WO1999030539A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2524579A2 (en) 2010-01-15 2012-11-21 Koninklijke Philips Electronics N.V. A power factor correction circuit of an electronic ballast
CN110174579B (en) * 2019-07-11 2021-08-10 合肥工业大学 Multifunctional modularized gas discharge tube test circuit and device

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5030887A (en) * 1990-01-29 1991-07-09 Guisinger John E High frequency fluorescent lamp exciter
US5173643A (en) * 1990-06-25 1992-12-22 Lutron Electronics Co., Inc. Circuit for dimming compact fluorescent lamps
US5258692A (en) * 1992-06-02 1993-11-02 Appliance Control Technology, Inc. Electronic ballast high power factor for gaseous discharge lamps
US5517086A (en) * 1995-03-13 1996-05-14 General Electric Company Modified valley fill high power factor correction ballast
DE19508468A1 (en) * 1994-11-25 1996-06-05 Matsushita Electric Works Ltd Current supply device for rectifying AC voltage from AC voltage source and converting rectified voltage to HF output signal for application to load
DE19516652A1 (en) * 1995-03-15 1996-09-19 Matsushita Electric Works Ltd Inverter connected between rectifier powered by AC source and discharge lamp
US5563777A (en) * 1994-04-25 1996-10-08 Matsushita Electric Works, Ltd. Inverter AC power supply
WO1997016884A1 (en) * 1995-11-03 1997-05-09 Telefonaktiebolaget Lm Ericsson (Publ) Device and method of supplying from an ac source
US5691606A (en) * 1994-09-30 1997-11-25 Pacific Scientific Company Ballast circuit for fluorescent lamp
WO1998034438A1 (en) * 1997-01-31 1998-08-06 Motorola Inc. Electronic ballast with lamp current valley-fill power factor correction

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5030887A (en) * 1990-01-29 1991-07-09 Guisinger John E High frequency fluorescent lamp exciter
US5173643A (en) * 1990-06-25 1992-12-22 Lutron Electronics Co., Inc. Circuit for dimming compact fluorescent lamps
US5258692A (en) * 1992-06-02 1993-11-02 Appliance Control Technology, Inc. Electronic ballast high power factor for gaseous discharge lamps
US5563777A (en) * 1994-04-25 1996-10-08 Matsushita Electric Works, Ltd. Inverter AC power supply
US5691606A (en) * 1994-09-30 1997-11-25 Pacific Scientific Company Ballast circuit for fluorescent lamp
DE19508468A1 (en) * 1994-11-25 1996-06-05 Matsushita Electric Works Ltd Current supply device for rectifying AC voltage from AC voltage source and converting rectified voltage to HF output signal for application to load
US5517086A (en) * 1995-03-13 1996-05-14 General Electric Company Modified valley fill high power factor correction ballast
DE19516652A1 (en) * 1995-03-15 1996-09-19 Matsushita Electric Works Ltd Inverter connected between rectifier powered by AC source and discharge lamp
WO1997016884A1 (en) * 1995-11-03 1997-05-09 Telefonaktiebolaget Lm Ericsson (Publ) Device and method of supplying from an ac source
WO1998034438A1 (en) * 1997-01-31 1998-08-06 Motorola Inc. Electronic ballast with lamp current valley-fill power factor correction

Also Published As

Publication number Publication date
WO1999030539A2 (en) 1999-06-17

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