GB1530142A - Starters for discharge lamps - Google Patents

Starters for discharge lamps

Info

Publication number
GB1530142A
GB1530142A GB4800375A GB4800375A GB1530142A GB 1530142 A GB1530142 A GB 1530142A GB 4800375 A GB4800375 A GB 4800375A GB 4800375 A GB4800375 A GB 4800375A GB 1530142 A GB1530142 A GB 1530142A
Authority
GB
United Kingdom
Prior art keywords
lamp
high frequency
khz
source
pressure 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
GB4800375A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB4800375A priority Critical patent/GB1530142A/en
Publication of GB1530142A publication Critical patent/GB1530142A/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
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

1530142 Starting high pressure discharge lamps GENERAL ELECTRIC CO 21 Nov 1975 48003/75 Heading H2H A starter for a high pressure discharge lamp comprises a source of undamped, high frequency ionizing voltage and a transformer T2 for coupling the voltage to the lamp. The lamp may be a sodium or mercury lamp and the starter enables rapid restarting of a hot lamp. The lamp is connected to a conventional ballast circuit and the frequency of the starting pulses supplied by the high frequency source is in the range 17 kHz to 60 kHz. The high frequency source may supply sine or square waves having a half period which is less than the de-ionization time constant of the lamp so that the level of ionization increases with each half cycle.
GB4800375A 1975-11-21 1975-11-21 Starters for discharge lamps Expired GB1530142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4800375A GB1530142A (en) 1975-11-21 1975-11-21 Starters for discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4800375A GB1530142A (en) 1975-11-21 1975-11-21 Starters for discharge lamps

Publications (1)

Publication Number Publication Date
GB1530142A true GB1530142A (en) 1978-10-25

Family

ID=10447018

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4800375A Expired GB1530142A (en) 1975-11-21 1975-11-21 Starters for discharge lamps

Country Status (1)

Country Link
GB (1) GB1530142A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1034691A1 (en) * 1997-11-05 2000-09-13 Jorge M. Parra Non-thermionic ballast-free energy-efficient light-producing gas discharge system and method
GB2356499A (en) * 1996-11-19 2001-05-23 Micro Tech Ltd Reduced voltage striking of discharge lamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2356499A (en) * 1996-11-19 2001-05-23 Micro Tech Ltd Reduced voltage striking of discharge lamp
GB2356499B (en) * 1996-11-19 2001-07-11 Micro Tech Ltd Lamp driver circuit and method
EP1034691A1 (en) * 1997-11-05 2000-09-13 Jorge M. Parra Non-thermionic ballast-free energy-efficient light-producing gas discharge system and method
EP1034691A4 (en) * 1997-11-05 2004-07-28 Jorge M Parra Non-thermionic ballast-free energy-efficient light-producing gas discharge system and method

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Legal Events

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