GB925367A - Improvements in or relating to circuit arrangements for operating electric dischargelamps - Google Patents
Improvements in or relating to circuit arrangements for operating electric dischargelampsInfo
- Publication number
- GB925367A GB925367A GB3608260A GB3608260A GB925367A GB 925367 A GB925367 A GB 925367A GB 3608260 A GB3608260 A GB 3608260A GB 3608260 A GB3608260 A GB 3608260A GB 925367 A GB925367 A GB 925367A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- dischargelamps
- relating
- inductor
- combination
- 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
925,367. Supply circuits for electric discharge lamps. GENERAL ELECTRIC CO. Ltd. Oct. 20, 1961 [Oct. 20, 1960], No. 36082/60. Class 38 (4). A circuit arrangement for operating at least one heatable cathode electric discharge lamp 5 from a low voltage high frequency A.C. supply is provided with the series combination of a capacitor C2 and an inductor L2 connected in series with the discharge path of the lamp 5 so as to prevent rectification due to a lamp fault, the capacitor - inductor combination being arranged to be at or near resonance at the frequency of the A.C. supply. The combination may alternatively be connected between the ballast inductor L1 and the lamp or the elements may be connected one at each side of the lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3608260A GB925367A (en) | 1960-10-20 | 1960-10-20 | Improvements in or relating to circuit arrangements for operating electric dischargelamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3608260A GB925367A (en) | 1960-10-20 | 1960-10-20 | Improvements in or relating to circuit arrangements for operating electric dischargelamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB925367A true GB925367A (en) | 1963-05-08 |
Family
ID=10384747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3608260A Expired GB925367A (en) | 1960-10-20 | 1960-10-20 | Improvements in or relating to circuit arrangements for operating electric dischargelamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB925367A (en) |
-
1960
- 1960-10-20 GB GB3608260A patent/GB925367A/en not_active Expired
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