GB437660A - Improvements in or relating to gas or vapour electric discharge devices - Google Patents
Improvements in or relating to gas or vapour electric discharge devicesInfo
- Publication number
- GB437660A GB437660A GB1343534A GB1343534A GB437660A GB 437660 A GB437660 A GB 437660A GB 1343534 A GB1343534 A GB 1343534A GB 1343534 A GB1343534 A GB 1343534A GB 437660 A GB437660 A GB 437660A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- condenser
- resistance
- anode
- discharge
- 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
- H02M1/04—Circuits specially adapted for the generation of grid-control or igniter-control voltages for discharge tubes incorporated in static converters for tubes with grid control
- H02M1/042—Circuits specially adapted for the generation of grid-control or igniter-control voltages for discharge tubes incorporated in static converters for tubes with grid control wherein the phase of the control voltage is adjustable with reference to the AC voltage
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
437,660. Converting. ELECTRICAL EQUIPMENT & CARBON CO., Ltd., 107, New Oxford Street, London.-(Elin Akt.- Ges. f³r Elektrische Industrie; 1, Volksgartenstrasse, Vienna) May 3, 1934, No. 13435. [Class 38 (ii)] The grid control potential for a discharge device is obtained by distorting an alternating grid potential during its negative half cycle by valve action of the grid, this distortion being varied to obtain regulation. When an anode (e.g. the anode associated with grid g1) is conductive the condenser C1 is short circuited due to grid current flowing. When conduction ceases the condenser first charges from the grid transformer t1 through the resistance R1 applying a negative bias to the grid and then commences to discharge, the period of charge and discharge being determined by the size of condenser and value of the resistance R1. Since the anode cannot conduct until the potential on the condenser falls approximately to zero, the moment of ignition can be varied by adjustment of the resistance condenser combination. In a modification a common resistance in the connection between the centre tap of the grid transformer and the cathode is used. To obtain protection against short circuit a resistance, normally short circuited, is switched into the grid circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1343534A GB437660A (en) | 1934-05-03 | 1934-05-03 | Improvements in or relating to gas or vapour electric discharge devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1343534A GB437660A (en) | 1934-05-03 | 1934-05-03 | Improvements in or relating to gas or vapour electric discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB437660A true GB437660A (en) | 1935-11-04 |
Family
ID=10022935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1343534A Expired GB437660A (en) | 1934-05-03 | 1934-05-03 | Improvements in or relating to gas or vapour electric discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB437660A (en) |
-
1934
- 1934-05-03 GB GB1343534A patent/GB437660A/en not_active Expired
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