GB505870A - Improvements in and relating to electric valve circuits - Google Patents
Improvements in and relating to electric valve circuitsInfo
- Publication number
- GB505870A GB505870A GB17944/38A GB1794438A GB505870A GB 505870 A GB505870 A GB 505870A GB 17944/38 A GB17944/38 A GB 17944/38A GB 1794438 A GB1794438 A GB 1794438A GB 505870 A GB505870 A GB 505870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- control
- oscillatory
- june
- condenser
- class
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
505,870. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. June 16, 1938, No. 17944. Convention date, June 16, 1937. [Class 38 (ii)] In a converting arrangement comprising main discharge devices 4, 5 having immersion ignitors, control impulses of steep wavefront are obtained by means of' oscillatory circuits 12, 13, connected to the supply 1 of control potential and also through grid controlled auxiliary valves 20 to the control electrodes 11 of the main discharge devices, the oscillatory circuits resonating at the frequency of the control potential. The oscillatory circuits are supplied through a phase shifting circuit 18, 19 to enable control of the moment of ignition to be effected. Each valve 20 is controlled from its associated oscillatory circuit, the control potential being obtained from a resistance 26 which is connected in series with a condenser 25 across the oscillatory circuit. The inductance 14 may be self saturating and, if desired, the supply for the electrode 11 may be taken from across the inductance instead of from across the condenser 15. Specifications 292,110, [Class 38 (ii)], 489,021, and 499,280 are referred to.
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 |
|---|---|
| GB505870A true GB505870A (en) | 1939-05-18 |
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 Before (1)
| 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 |
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 |
|---|---|
| US2190775A (en) | 1940-02-20 |
| FR839302A (en) | 1939-03-31 |
| DE916199C (en) | 1954-08-05 |
| GB499280A (en) | 1939-01-20 |
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