GB499280A - Improvements in and relating to electric valve circuits - Google Patents
Improvements in and relating to electric valve circuitsInfo
- Publication number
- GB499280A GB499280A GB17943/38A GB1794338A GB499280A GB 499280 A GB499280 A GB 499280A GB 17943/38 A GB17943/38 A GB 17943/38A GB 1794338 A GB1794338 A GB 1794338A GB 499280 A GB499280 A GB 499280A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reactance
- supplied
- winding
- electrode
- transformer
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/02—Circuits specially adapted for the generation of grid-control or igniter-control voltages for discharge tubes incorporated in static converters
Abstract
499,280. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. June 16, 1938, No. 17943. Convention date, June 16, 1937. [Class 38 (ii)] [Also in Group XL] In a converting arrangement which comprises a discharge device 4 provided with a highresistance starting electrode 8, permanently immersed in the cathode 7, the starting voltage to the electrode 8 is supplied from a condenser 15 and an inductive reactance 16 in dependence upon the degree of magnetization of the reactance which is determined by the intensity of ionization in the device. D.C. is supplied through valves 4, 5 to the mains 2 from the A.C. source 1. Each valve has exciting anodes 9 which are connected to a transformer 19, supplied from the source 1 through a phase shifter 14 and a transformer 13. The centrepoint on the transformer secondary 21 is connected through a, winding 18 on the reactance 16 to the cathode 7, so that rectified current flows therethrough ; the degree of magnetization of the reactance will therefore depend upon the current in winding 18. The winding 17 and the condenser 15 form a tuned circuit so that when the maintaining arcs to the anodes 9 are extinguished, the reactance becomes unsaturated and voltage impulses are supplied through the rectifier 22 to the electrode 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US148518A US2190775A (en) | 1937-06-16 | 1937-06-16 | Electric valve circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB499280A true GB499280A (en) | 1939-01-20 |
Family
ID=22526112
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17943/38A Expired GB499280A (en) | 1937-06-16 | 1938-06-16 | Improvements in and relating to electric valve circuits |
| GB17944/38A Expired GB505870A (en) | 1937-06-16 | 1938-06-16 | Improvements in and relating to electric valve circuits |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17944/38A Expired GB505870A (en) | 1937-06-16 | 1938-06-16 | Improvements in and relating to electric valve circuits |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2190775A (en) |
| DE (1) | DE916199C (en) |
| FR (1) | FR839302A (en) |
| GB (2) | GB499280A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1073643B (en) * | 1960-01-21 | Siemens-Schuckertwerke Aktiengesellschaft, Berlin Und Erlangen | Device for operating discharge vessels | |
| US2431903A (en) * | 1940-12-05 | 1947-12-02 | Gen Electric | Electric control circuits |
| US2436324A (en) * | 1941-07-31 | 1948-02-17 | Westinghouse Electric Corp | Ignitron firing circuit |
| US2420919A (en) * | 1942-07-10 | 1947-05-20 | Weltronic Co | Timing control system |
| DE1063721B (en) * | 1954-07-08 | 1959-08-20 | Pintsch Bamag Ag | Ignition device for metal vapor discharge vessels controlled by a ignition pin made of material of high electrical resistance that dips into the cathode |
| DE1126525B (en) * | 1958-11-05 | 1962-03-29 | Siemens Ag | Ignition and excitation circuit for single-anode vessels with initial ignition and permanent excitation |
-
1937
- 1937-06-16 US US148518A patent/US2190775A/en not_active Expired - Lifetime
-
1938
- 1938-06-15 FR FR839302D patent/FR839302A/en not_active Expired
- 1938-06-16 GB GB17943/38A patent/GB499280A/en not_active Expired
- 1938-06-16 GB GB17944/38A patent/GB505870A/en not_active Expired
- 1938-06-17 DE DEA10978D patent/DE916199C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR839302A (en) | 1939-03-31 |
| GB505870A (en) | 1939-05-18 |
| DE916199C (en) | 1954-08-05 |
| US2190775A (en) | 1940-02-20 |
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