GB9209421D0 - Improvements in electronic ballasts - Google Patents

Improvements in electronic ballasts

Info

Publication number
GB9209421D0
GB9209421D0 GB929209421A GB9209421A GB9209421D0 GB 9209421 D0 GB9209421 D0 GB 9209421D0 GB 929209421 A GB929209421 A GB 929209421A GB 9209421 A GB9209421 A GB 9209421A GB 9209421 D0 GB9209421 D0 GB 9209421D0
Authority
GB
United Kingdom
Prior art keywords
electronic ballasts
ballasts
electronic
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.)
Granted
Application number
GB929209421A
Other versions
GB2256099A (en
GB2256099B (en
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.)
WONG SIEW E
Original Assignee
WONG SIEW E
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 WONG SIEW E filed Critical WONG SIEW E
Publication of GB9209421D0 publication Critical patent/GB9209421D0/en
Publication of GB2256099A publication Critical patent/GB2256099A/en
Application granted granted Critical
Publication of GB2256099B publication Critical patent/GB2256099B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
GB9209421A 1990-08-31 1992-04-30 Improvements in electronic ballasts Expired - Fee Related GB2256099B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPK208490 1990-08-31
PCT/AU1991/000402 WO1992004808A1 (en) 1990-08-31 1991-08-29 Improvements in electronic ballasts

Publications (3)

Publication Number Publication Date
GB9209421D0 true GB9209421D0 (en) 1992-06-24
GB2256099A GB2256099A (en) 1992-11-25
GB2256099B GB2256099B (en) 1994-10-19

Family

ID=3774930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9209421A Expired - Fee Related GB2256099B (en) 1990-08-31 1992-04-30 Improvements in electronic ballasts

Country Status (2)

Country Link
GB (1) GB2256099B (en)
WO (1) WO1992004808A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0599405B1 (en) * 1992-11-26 1998-02-11 Koninklijke Philips Electronics N.V. Low harmonic power supply for a discharge lamp
DE69313256T2 (en) * 1993-01-12 1998-02-19 Philips Electronics Nv Ballast circuit
EP0606665B1 (en) * 1993-01-12 1997-08-20 Koninklijke Philips Electronics N.V. Circuit arrangement
CN1050493C (en) * 1993-01-16 2000-03-15 浙江照明电器总公司 High power factor electronic lamp with abnormal state protector
ES2122144T3 (en) * 1993-04-23 1998-12-16 Koninkl Philips Electronics Nv POWER FACTOR CORRECTOR CIRCUIT.
US5410221A (en) * 1993-04-23 1995-04-25 Philips Electronics North America Corporation Lamp ballast with frequency modulated lamp frequency
US5404082A (en) * 1993-04-23 1995-04-04 North American Philips Corporation High frequency inverter with power-line-controlled frequency modulation
DE4410492A1 (en) * 1994-03-25 1995-09-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Circuit arrangement for operating low-pressure 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
EP2104402A1 (en) * 2008-03-17 2009-09-23 Chuan Shih Industrial Co., Ldt. Electronic ballast for fluorescent lamps
EP3123827B1 (en) 2014-03-24 2020-11-04 Redisem Ltd. Power converter circuit and method thereof
US11309790B2 (en) 2017-01-26 2022-04-19 Redisem Ltd. Power converter circuit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109307A (en) * 1977-05-04 1978-08-22 Gte Sylvania Incorporated High power factor conversion circuitry
US4511823A (en) * 1982-06-01 1985-04-16 Eaton William L Reduction of harmonics in gas discharge lamp ballasts
JPS5950781A (en) * 1982-09-14 1984-03-23 Matsushita Electric Works Ltd Inverter device
AU2708684A (en) * 1983-05-05 1984-11-08 Dubank Electronics Pty. Ltd. Electronic ballast and starter
DE3667367D1 (en) * 1985-06-04 1990-01-11 Thorn Emi Lighting Nz Ltd IMPROVED POWER SUPPLY.
JP2698597B2 (en) * 1988-03-31 1998-01-19 東芝ライテック株式会社 Inverter device
DE3841227A1 (en) * 1988-12-07 1990-06-13 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh CIRCUIT ARRANGEMENT FOR OPERATING A LOW-PRESSURE DISCHARGE LAMP
GB8905177D0 (en) * 1989-03-07 1989-04-19 Emi Plc Thorn Switched-mode regulator circuit
ES2049772T3 (en) * 1989-05-02 1994-05-01 Siemens Ag ELECTRONIC ADAPTER.
CA2037927A1 (en) * 1989-08-04 1991-02-05 Henri E. F. M. Courier De Mere Feeding device for converters, free of harmonic distortion

Also Published As

Publication number Publication date
WO1992004808A1 (en) 1992-03-19
GB2256099A (en) 1992-11-25
GB2256099B (en) 1994-10-19

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970829