GB762208A - Improvements in or relating to electronic timing systems - Google Patents
Improvements in or relating to electronic timing systemsInfo
- Publication number
- GB762208A GB762208A GB6360/54A GB636054A GB762208A GB 762208 A GB762208 A GB 762208A GB 6360/54 A GB6360/54 A GB 6360/54A GB 636054 A GB636054 A GB 636054A GB 762208 A GB762208 A GB 762208A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thyratron
- capacitor
- adjustment
- potentiometers
- taps
- 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
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
- H03K17/288—Modifications for introducing a time delay before switching in tube switches
Landscapes
- Arc Welding Control (AREA)
Abstract
762,208. Discharge-tube relay circuits. IGRANIC ELECTRIC CO., Ltd. March 4, 1954 [March 5, 1953], No. 6360/54. Class 40(6) The Figure shows the circuit of a timer operated from an A.C. supply applied across terminals L<SP>1</SP>, L<SP>2</SP>. When switch 20 is closed capacitor 18 is charged from the A.C. potential between the taps of potentiometers 13 and 15 via diodes 21 and 22 until thyratron 10 is rendered non-conducting. When switch 20 is opened capacitor 18 discharges through resistors 24 and 19 until after a given period thyratron 10 conducts relay 8 operates. The delay period before the charge in capacitor 18 is sufficiently reduced to render thyratron 10 conducting can be varied by adjustment of the taps of potentiometers 13 and 15 the former, which varies the in-phase voltage at the control electrode of tube 10, acting as a " fine adjustment and. the latter as a " coarse " adjustment of the timing period. The timer is relatievly insensitive to fluctuations in the mains voltage.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US762208XA | 1953-03-05 | 1953-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB762208A true GB762208A (en) | 1956-11-28 |
Family
ID=22130669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6360/54A Expired GB762208A (en) | 1953-03-05 | 1954-03-04 | Improvements in or relating to electronic timing systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB762208A (en) |
-
1954
- 1954-03-04 GB GB6360/54A patent/GB762208A/en not_active Expired
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