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 lampsInfo
- 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
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.
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) |
-
1959
- 1959-09-29 GB GB3308559A patent/GB906991A/en not_active Expired
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