EP0831677A3 - Electronic ballast for fluorescent lamp - Google Patents

Electronic ballast for fluorescent lamp Download PDF

Info

Publication number
EP0831677A3
EP0831677A3 EP97304183A EP97304183A EP0831677A3 EP 0831677 A3 EP0831677 A3 EP 0831677A3 EP 97304183 A EP97304183 A EP 97304183A EP 97304183 A EP97304183 A EP 97304183A EP 0831677 A3 EP0831677 A3 EP 0831677A3
Authority
EP
European Patent Office
Prior art keywords
ballast
fluorescent lamp
circuit
electronic ballast
high frequency
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.)
Withdrawn
Application number
EP97304183A
Other languages
German (de)
French (fr)
Other versions
EP0831677A2 (en
Inventor
Onn Fah Foo
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.)
Mass Technology HK Ltd
Original Assignee
Mass Technology HK Ltd
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 Mass Technology HK Ltd filed Critical Mass Technology HK Ltd
Publication of EP0831677A2 publication Critical patent/EP0831677A2/en
Publication of EP0831677A3 publication Critical patent/EP0831677A3/en
Withdrawn legal-status Critical Current

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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

An electronic ballast for a fluorescent lamp includes a rectifier circuit (11), a filter circuit (16), a high frequency generating and control circuit (17), a starting circuit (18) for the fluorescent tube and main (14) and auxiliary (13) circuits used to increase the power factor of the ballast and to suppress the harmonic current interference. Because of the introduction of the main and the auxiliary current-uninterrupted circuits, the input curent is continuous and follows the variation with the input voltage and the power factor of the ballast is increased while the post high frequency generating and control circuit tends to be stable in operation. Furthermore, the interference of the harmonic current for the ballast will be suppressed effectively, the contamination to power network will be reduced and the electrical security in operation will be enhanced.
EP97304183A 1996-09-24 1997-06-16 Electronic ballast for fluorescent lamp Withdrawn EP0831677A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN96119956 1996-09-24
CN96119956A CN1113583C (en) 1996-09-24 1996-09-24 Electronic ballast for fluorescent lamp

Publications (2)

Publication Number Publication Date
EP0831677A2 EP0831677A2 (en) 1998-03-25
EP0831677A3 true EP0831677A3 (en) 1998-10-14

Family

ID=5126046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97304183A Withdrawn EP0831677A3 (en) 1996-09-24 1997-06-16 Electronic ballast for fluorescent lamp

Country Status (3)

Country Link
EP (1) EP0831677A3 (en)
CN (1) CN1113583C (en)
AU (1) AU737784B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2515919Y (en) * 2001-12-05 2002-10-09 马士科技有限公司 Adjustable light fluorescent lamp device using mached with silicon controlled PM light modulator
ITMI20020564A1 (en) * 2002-03-15 2003-09-15 Vlm Spa HIGH FATTOE ELECTRONIC BALLAST FOR DISCHARGE LAMPS
JP4400125B2 (en) * 2003-07-30 2010-01-20 ウシオ電機株式会社 Short arc type discharge lamp lighting device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0395776A1 (en) * 1989-05-02 1990-11-07 Siemens Aktiengesellschaft Electronic ballast
EP0621743A1 (en) * 1993-04-23 1994-10-26 Koninklijke Philips Electronics N.V. Power factor correcting circuit
WO1996007297A2 (en) * 1994-08-22 1996-03-07 Philips Electronics N.V. Circuit arrangement for a discharge lamp comprising a dc-ac converter and a resonance circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5355055A (en) * 1992-08-21 1994-10-11 Ganaat Technical Developments Ltd. Lighting assembly and an electronic ballast therefor
CN2191515Y (en) * 1994-04-26 1995-03-08 张卫星 Electronic ballast for fluorescent lamp
CN2221711Y (en) * 1995-07-19 1996-03-06 深圳华源实业股份有限公司 Energy-saving electronic lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0395776A1 (en) * 1989-05-02 1990-11-07 Siemens Aktiengesellschaft Electronic ballast
EP0621743A1 (en) * 1993-04-23 1994-10-26 Koninklijke Philips Electronics N.V. Power factor correcting circuit
WO1996007297A2 (en) * 1994-08-22 1996-03-07 Philips Electronics N.V. Circuit arrangement for a discharge lamp comprising a dc-ac converter and a resonance circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
VERDERBER R R ET AL: "HARMONICS FROM COMPACT FLUORESCENT LAMPS", PROCEEDINGS OF THE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING, DEARBORN, SEPT. 28 - OCT. 1, 1991, vol. VOL. 2, no. -, 28 September 1991 (1991-09-28), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 1853 - 1858, XP000299694 *

Also Published As

Publication number Publication date
AU1256397A (en) 1998-03-26
CN1192646A (en) 1998-09-09
CN1113583C (en) 2003-07-02
AU737784B2 (en) 2001-08-30
EP0831677A2 (en) 1998-03-25

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