GB2298749B - Electronic ballasts for gas discharge lamps - Google Patents

Electronic ballasts for gas discharge lamps

Info

Publication number
GB2298749B
GB2298749B GB9609104A GB9609104A GB2298749B GB 2298749 B GB2298749 B GB 2298749B GB 9609104 A GB9609104 A GB 9609104A GB 9609104 A GB9609104 A GB 9609104A GB 2298749 B GB2298749 B GB 2298749B
Authority
GB
United Kingdom
Prior art keywords
gas discharge
discharge lamps
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.)
Expired - Lifetime
Application number
GB9609104A
Other versions
GB2298749A (en
GB9609104D0 (en
Inventor
Peter N Wood
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.)
Infineon Technologies Americas Corp
Original Assignee
International Rectifier Corp USA
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
Priority claimed from US08/206,123 external-priority patent/US5545955A/en
Application filed by International Rectifier Corp USA filed Critical International Rectifier Corp USA
Publication of GB9609104D0 publication Critical patent/GB9609104D0/en
Publication of GB2298749A publication Critical patent/GB2298749A/en
Application granted granted Critical
Publication of GB2298749B publication Critical patent/GB2298749B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B41/282—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
    • H05B41/2853—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal power supply 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
    • 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
    • H05B41/2856—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against internal abnormal circuit conditions
GB9609104A 1994-03-04 1995-02-22 Electronic ballasts for gas discharge lamps Expired - Lifetime GB2298749B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/206,123 US5545955A (en) 1994-03-04 1994-03-04 MOS gate driver for ballast circuits
GB9503538A GB2287143B (en) 1994-03-04 1995-02-22 Driver circuit for driving MOS gated power semiconductor devices

Publications (3)

Publication Number Publication Date
GB9609104D0 GB9609104D0 (en) 1996-07-03
GB2298749A GB2298749A (en) 1996-09-11
GB2298749B true GB2298749B (en) 1998-01-07

Family

ID=26306558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9609104A Expired - Lifetime GB2298749B (en) 1994-03-04 1995-02-22 Electronic ballasts for gas discharge lamps

Country Status (1)

Country Link
GB (1) GB2298749B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999014990A1 (en) * 1997-09-18 1999-03-25 Everbrite, Inc. Floating driver having common emitter drive stage
US6963178B1 (en) 1998-12-07 2005-11-08 Systel Development And Industries Ltd. Apparatus for controlling operation of gas discharge devices
WO2000035252A2 (en) * 1998-12-07 2000-06-15 Systel Development And Industries Ltd. Digital lamp ballast
WO2010070582A2 (en) * 2008-12-15 2010-06-24 Lighting 21St Limited Electronic ballast for low wattage lighting applications

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117192A (en) * 1982-02-26 1983-10-05 Transtar Limited Lamp control circuit
US4709189A (en) * 1985-01-24 1987-11-24 Toshiyuki Kuchii Transistor inverter device for fluorescent lamp
WO1988007316A1 (en) * 1987-03-17 1988-09-22 Berni Ford Activating lighted signs
GB2211038A (en) * 1987-10-14 1989-06-21 Sum Wing Lau Protective electronic ballast circuit for fluorescent lamps
US4937501A (en) * 1987-09-03 1990-06-26 U.S. Philips Corporation Circuit arrangement for starting a high-pressure gas discharge lamp
WO1990011005A1 (en) * 1989-03-10 1990-09-20 Harel Jean Claude Electronic starting and power supply device for preheated electrode fluorescent tubes
GB2236921A (en) * 1988-04-25 1991-04-17 Active Lighting Controls Electronic ballast circuit for gas discharge lamp
US5049790A (en) * 1988-09-23 1991-09-17 Siemens Aktiengesellschaft Method and apparatus for operating at least one gas discharge lamp
EP0489477A1 (en) * 1990-12-05 1992-06-10 N.V. Nederlandsche Apparatenfabriek NEDAP Operating circuit for gas discharge lamps
EP0535911A1 (en) * 1991-09-30 1993-04-07 Toshiba Lighting & Technology Corporation Operating circuit arrangement for a discharge lamp

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117192A (en) * 1982-02-26 1983-10-05 Transtar Limited Lamp control circuit
US4709189A (en) * 1985-01-24 1987-11-24 Toshiyuki Kuchii Transistor inverter device for fluorescent lamp
WO1988007316A1 (en) * 1987-03-17 1988-09-22 Berni Ford Activating lighted signs
US4937501A (en) * 1987-09-03 1990-06-26 U.S. Philips Corporation Circuit arrangement for starting a high-pressure gas discharge lamp
GB2211038A (en) * 1987-10-14 1989-06-21 Sum Wing Lau Protective electronic ballast circuit for fluorescent lamps
GB2236921A (en) * 1988-04-25 1991-04-17 Active Lighting Controls Electronic ballast circuit for gas discharge lamp
US5049790A (en) * 1988-09-23 1991-09-17 Siemens Aktiengesellschaft Method and apparatus for operating at least one gas discharge lamp
WO1990011005A1 (en) * 1989-03-10 1990-09-20 Harel Jean Claude Electronic starting and power supply device for preheated electrode fluorescent tubes
EP0489477A1 (en) * 1990-12-05 1992-06-10 N.V. Nederlandsche Apparatenfabriek NEDAP Operating circuit for gas discharge lamps
EP0535911A1 (en) * 1991-09-30 1993-04-07 Toshiba Lighting & Technology Corporation Operating circuit arrangement for a discharge lamp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Walter G Jung, "IC Timer Cookbook", pub. 1977, Sams, Fig.5-3on page 117 *

Also Published As

Publication number Publication date
GB2298749A (en) 1996-09-11
GB9609104D0 (en) 1996-07-03

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20150221