GB453446A - Improvements in electric circuit arrangements for supplying luminous electric discharge devices - Google Patents
Improvements in electric circuit arrangements for supplying luminous electric discharge devicesInfo
- Publication number
- GB453446A GB453446A GB1074335A GB1074335A GB453446A GB 453446 A GB453446 A GB 453446A GB 1074335 A GB1074335 A GB 1074335A GB 1074335 A GB1074335 A GB 1074335A GB 453446 A GB453446 A GB 453446A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- terminals
- primary
- condenser
- tube
- 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
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
453,446. Supply systems for discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent- Treuhand Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) April 6, 1935, No. 10743. [Class 38 (iv)] Flickering of a luminous electric discharge device supplied from an alternating or intermittent source a, Fig. 1, is prevented by supplying an impulsive voltage b coinciding with the minimum values of the source. The discharge device 2, Fig. 2, is fed with alternating or intermittent current from terminals 3, and the circuit includes a stabilizing choke 4 and the secondary 5 of a transformer, the primary 7 of which is fed through a resistance 9 from terminals 8 supplied from the same source as the terminals 3, but through a phase shifting device, not shown. A condenser 10 and discharge tube 11 are connected across the primary 7 so that when the voltage across terminals 3 falls to a minimum, the voltage across condenser 10 attains the starting potential of tube 11 and the condenser discharges through the tube. The consequent change of voltage across the primary 7 induces the required impulsive voltage across the electrodes of the discharge device 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1074335A GB453446A (en) | 1935-04-06 | 1935-04-06 | Improvements in electric circuit arrangements for supplying luminous electric discharge devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1074335A GB453446A (en) | 1935-04-06 | 1935-04-06 | Improvements in electric circuit arrangements for supplying luminous electric discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB453446A true GB453446A (en) | 1936-09-11 |
Family
ID=9973457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1074335A Expired GB453446A (en) | 1935-04-06 | 1935-04-06 | Improvements in electric circuit arrangements for supplying luminous electric discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB453446A (en) |
-
1935
- 1935-04-06 GB GB1074335A patent/GB453446A/en not_active Expired
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