GB906991A - Improvements in or relating to circuit arrangements for starting and operating electric discharge lamps - Google Patents

Improvements in or relating to circuit arrangements for starting and operating electric discharge lamps

Info

Publication number
GB906991A
GB906991A GB3308559A GB3308559A GB906991A GB 906991 A GB906991 A GB 906991A GB 3308559 A GB3308559 A GB 3308559A GB 3308559 A GB3308559 A GB 3308559A GB 906991 A GB906991 A GB 906991A
Authority
GB
United Kingdom
Prior art keywords
series
lamp
choke
capacitor
lamps
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
GB3308559A
Inventor
Julius Cates
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 PLC
Original Assignee
General Electric Co PLC
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 PLC filed Critical General Electric Co PLC
Priority to GB3308559A priority Critical patent/GB906991A/en
Publication of GB906991A publication Critical patent/GB906991A/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
    • H05B41/2325—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 provided with pre-heating electrodes

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

906,991. Supply systems for space discharge lamps. GENERAL ELECTRIC CO. Ltd. Nov. 2, 1960 [Sept. 29, 1959], No. 33085/59. Class 38 (4). In a discharge lamp circuit having a heating transformer primary winding 5 in series with a choke 2 and the lamp 1 and a capacitor 3 connected across the lamp 1 in series with part or all of the choke, each separate electrode heating winding 6, 7 is connected in subtractive voltage relation to the discharge potential in order to give improved waveform also a higher voltage drop across the primary winding 5, when the lamp strikes. One heater CD may be alternatively connected in series with the capacitor and the winding 6 omitted. The capacitor 3 may be alternatively connected to a tap 10 on the choke 2 to increase the starting voltage. A number of arrangements are described in the Specification, for operating lamps in series or parallel, also constructional data is given for a transformer suitable for operating 2-20 watt lamps in series.
GB3308559A 1959-09-29 1959-09-29 Improvements in or relating to circuit arrangements for starting and operating electric discharge lamps Expired GB906991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3308559A GB906991A (en) 1959-09-29 1959-09-29 Improvements in or relating to circuit arrangements for starting and operating electric discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3308559A GB906991A (en) 1959-09-29 1959-09-29 Improvements in or relating to circuit arrangements for starting and operating electric discharge lamps

Publications (1)

Publication Number Publication Date
GB906991A true GB906991A (en) 1962-09-26

Family

ID=10348370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3308559A Expired GB906991A (en) 1959-09-29 1959-09-29 Improvements in or relating to circuit arrangements for starting and operating electric discharge lamps

Country Status (1)

Country Link
GB (1) GB906991A (en)

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