GB1034510A - Improvements in discharge-lamp circuits - Google Patents

Improvements in discharge-lamp circuits

Info

Publication number
GB1034510A
GB1034510A GB688765A GB688765A GB1034510A GB 1034510 A GB1034510 A GB 1034510A GB 688765 A GB688765 A GB 688765A GB 688765 A GB688765 A GB 688765A GB 1034510 A GB1034510 A GB 1034510A
Authority
GB
United Kingdom
Prior art keywords
inductor
series
discharge
lamp circuits
discharge lamp
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
GB688765A
Inventor
Donald Frederick Chapman
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.)
British Lighting Industries Ltd
Original Assignee
British Lighting Industries 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 British Lighting Industries Ltd filed Critical British Lighting Industries Ltd
Priority to GB688765A priority Critical patent/GB1034510A/en
Publication of GB1034510A publication Critical patent/GB1034510A/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
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
    • H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

1,034,510. Discharge lamp circuits. BRITISH LIGHTING INDUSTRIES Ltd. Feb. 17, 1965, No. 6887/65. Heading H2H. In a discharge lamp circuit having a ballast inductor 15, a series resonant circuit 17, 18 tuned to the fifth harmonic of the mains frequency is connected across at least part of the inductor. A capacitor 19 may be connected in series with the lamp 13 or the inductor 15. Where a leakage transformer is used, the resonant circuit may be connected across at least part of the secondary winding. A number of lamps 13 may be arranged in series.
GB688765A 1965-02-17 1965-02-17 Improvements in discharge-lamp circuits Expired GB1034510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB688765A GB1034510A (en) 1965-02-17 1965-02-17 Improvements in discharge-lamp circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB688765A GB1034510A (en) 1965-02-17 1965-02-17 Improvements in discharge-lamp circuits

Publications (1)

Publication Number Publication Date
GB1034510A true GB1034510A (en) 1966-06-29

Family

ID=9822613

Family Applications (1)

Application Number Title Priority Date Filing Date
GB688765A Expired GB1034510A (en) 1965-02-17 1965-02-17 Improvements in discharge-lamp circuits

Country Status (1)

Country Link
GB (1) GB1034510A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262898A1 (en) * 1974-03-01 1975-09-26 Philips Nv

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262898A1 (en) * 1974-03-01 1975-09-26 Philips Nv

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