GB858363A - Improvements in or relating to control circuit arrangements for controllable gas- orvapour-filled discharge tubes - Google Patents
Improvements in or relating to control circuit arrangements for controllable gas- orvapour-filled discharge tubesInfo
- Publication number
- GB858363A GB858363A GB5601/57A GB560157A GB858363A GB 858363 A GB858363 A GB 858363A GB 5601/57 A GB5601/57 A GB 5601/57A GB 560157 A GB560157 A GB 560157A GB 858363 A GB858363 A GB 858363A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- voltage
- bias
- resistor
- curve
- 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)
- Generation Of Surge Voltage And Current (AREA)
Abstract
858,363. Converting; automatic regulation; control systems for space-discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 19, 1957 [Feb. 22, 1956], No. 5601/57. Classes 38 (2) and 38 (4). A control circuit for a controllable gasfilled discharge tube 7 comprises a capacitor 5 charged through a rectifier 4 and having connected across it a resistor 6 of which at least a part is connected in the grid-cathode circuit of the tube 7, so that, in the absence of other bias, the grid is negative with respect to the cathode. The tube 7 having a load 10 in its anode circuit is supplied through a transformer 11 and variable-positive grid bias is supplied through a supply 9 and potentiometer 8. As shown in Fig. 2, the voltage waveform across the resistor 6 has a linear portion 14 and the tube ignites at the instant when this curve cuts the ignition voltage curve (dotted). The point of ignition is varied by (a) varying the slider 19 and hence the amplitude of the waveform 13, 14 ; (b) varying the positive grid bias when the whole waveform is moved upwards or downwards, In a modification (Fig. 4, not shown), the positive bias arrangement 8, 9 is replaced by a circuit combination of resistor, rectifier, capacitor and glowdischarge tube. If the tube 7 forms part of an a/c stabilizer automatic voltage compensation is obtained by a suitable choice of curve 14. An increase in mains voltage 16 involves an increase in voltage 14 which shifts the ignition point to decrease the output voltage.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL858363X | 1956-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB858363A true GB858363A (en) | 1961-01-11 |
Family
ID=19847334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5601/57A Expired GB858363A (en) | 1956-02-22 | 1957-02-19 | Improvements in or relating to control circuit arrangements for controllable gas- orvapour-filled discharge tubes |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE555175A (en) |
| FR (1) | FR1167145A (en) |
| GB (1) | GB858363A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3041500A (en) * | 1958-12-16 | 1962-06-26 | Philips Corp | Circuit arrangement for controlling gas- or vapour-filled discharge valves with the aid of a capacitor |
| DE1266875B (en) * | 1960-04-16 | 1968-04-25 | Siemens Ag | Circuit arrangement for generating periodic pulses |
| DE1176761B (en) * | 1962-08-27 | 1964-08-27 | Philips Nv | Circuit arrangement for controlling a gas discharge tube |
| DE1213909B (en) * | 1963-12-13 | 1966-04-07 | Philips Patentverwaltung | Arrangement for the ignition of grid-controlled gas discharge tubes or controllable semiconductor cells by means of pulses |
-
0
- BE BE555175D patent/BE555175A/xx unknown
-
1957
- 1957-02-19 GB GB5601/57A patent/GB858363A/en not_active Expired
- 1957-02-20 FR FR1167145D patent/FR1167145A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1167145A (en) | 1958-11-20 |
| BE555175A (en) |
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