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GB2074801B - Apparatus for operating a discharge lamp - Google Patents

Apparatus for operating a discharge lamp

Info

Publication number
GB2074801B
GB2074801B GB8108683A GB8108683A GB2074801B GB 2074801 B GB2074801 B GB 2074801B GB 8108683 A GB8108683 A GB 8108683A GB 8108683 A GB8108683 A GB 8108683A GB 2074801 B GB2074801 B GB 2074801B
Authority
GB
United Kingdom
Prior art keywords
operating
discharge lamp
lamp
discharge
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
Application number
GB8108683A
Other versions
GB2074801A (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.)
Toshiba Electric Equipment Corp
Original Assignee
Toshiba Electric Equipment Corp
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 Toshiba Electric Equipment Corp filed Critical Toshiba Electric Equipment Corp
Publication of GB2074801A publication Critical patent/GB2074801A/en
Application granted granted Critical
Publication of GB2074801B publication Critical patent/GB2074801B/en
Expired 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
    • H05B41/288—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 and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2928—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
GB8108683A 1980-03-24 1981-03-19 Apparatus for operating a discharge lamp Expired GB2074801B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3623380A JPS56134494A (en) 1980-03-24 1980-03-24 Device for firing discharge lamp

Publications (2)

Publication Number Publication Date
GB2074801A GB2074801A (en) 1981-11-04
GB2074801B true GB2074801B (en) 1984-04-26

Family

ID=12464048

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8108683A Expired GB2074801B (en) 1980-03-24 1981-03-19 Apparatus for operating a discharge lamp

Country Status (5)

Country Link
JP (1) JPS56134494A (en)
AU (1) AU6845481A (en)
DE (1) DE3111561C2 (en)
FR (1) FR2478932A1 (en)
GB (1) GB2074801B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388562A (en) * 1980-11-06 1983-06-14 Astec Components, Ltd. Electronic ballast circuit
DE3122183C2 (en) * 1981-06-04 1983-09-22 Philips Patentverwaltung Gmbh, 2000 Hamburg Method for operating a high-pressure metal vapor discharge lamp and circuit arrangement for carrying out this method
EP0078864A1 (en) * 1981-11-11 1983-05-18 Toshiba Electric Equipment Corporation Transistor inverter device
NL8205026A (en) * 1982-12-29 1984-07-16 Philips Nv APPARATUS EQUIPPED WITH A METAL VAPOR DISCHARGE PIPE EQUIPPED WITH AT LEAST TWO INTERNAL ELECTRODES.
JPS60127696A (en) * 1983-12-12 1985-07-08 松下電工株式会社 Device for firing discharge lamp
GB2172451B (en) * 1985-02-07 1989-06-14 El Co Villamos Keszulekek Es S Circuit system for igniting and lighting a high-pressure discharge lamp particulary a sodium vapour lamp
DE3641070A1 (en) * 1986-12-02 1988-06-16 Philips Patentverwaltung CIRCUIT ARRANGEMENT FOR OPERATING HIGH PRESSURE GAS DISCHARGE LAMPS BY MEANS OF AN IMPULSE SUPPLY CURRENT
JPH01115097A (en) * 1987-10-29 1989-05-08 Eye Lighting Syst Corp Electric discharge lamp lighting device
US5189343A (en) * 1991-08-27 1993-02-23 Everbrite, Inc. High frequency luminous tube power supply having neon-bubble and mercury-migration suppression
JP3550401B2 (en) * 1996-05-09 2004-08-04 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ High pressure discharge lamp and electric circuit unit
IT1303345B1 (en) * 1998-08-07 2000-11-06 Sunflower Di Dalla Zanna Gianl SWITCHING POWER SUPPLY, PARTICULARLY FOR HIGH PRESSURE LAMPS AND NEON TUBES.
GB2360150B (en) * 2000-03-10 2002-02-20 Microlights Ltd Improvements in and relating to high intensity discharge lighting
JP5309819B2 (en) * 2008-09-11 2013-10-09 ウシオ電機株式会社 Lighting device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1233841A (en) * 1969-04-24 1971-06-03
GB1529824A (en) * 1975-10-24 1978-10-25 Gen Electric Ballast circuit for gaseous discharge lamps
FR2351450A1 (en) * 1976-05-12 1977-12-09 Sachs Systemtechnik Gmbh Circuit for production of open alternating magnetic field - has two switching transistors each connected in series to parallel resonant circuits
US4170746A (en) * 1977-12-27 1979-10-09 General Electric Company High frequency operation of miniature metal vapor discharge lamps

Also Published As

Publication number Publication date
JPS6342400B2 (en) 1988-08-23
GB2074801A (en) 1981-11-04
DE3111561C2 (en) 1983-12-08
JPS56134494A (en) 1981-10-21
DE3111561A1 (en) 1982-04-29
AU6845481A (en) 1981-10-01
FR2478932A1 (en) 1981-09-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee