GB801602A - Improvements in and relating to electrical systems - Google Patents
Improvements in and relating to electrical systemsInfo
- Publication number
- GB801602A GB801602A GB407356A GB407356A GB801602A GB 801602 A GB801602 A GB 801602A GB 407356 A GB407356 A GB 407356A GB 407356 A GB407356 A GB 407356A GB 801602 A GB801602 A GB 801602A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- pulse
- pulses
- controlled
- negative
- 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
- 230000000903 blocking effect Effects 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/04—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback
- H03K3/16—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using a transformer for feedback, e.g. blocking oscillator with saturable core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Lasers (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
801,602. Pulse generating circuits. DRUMMOND, P. (Philco Corporation). Feb. 9, 1956, No. 4073/56. Class 40 (6). In a blocking oscillator comprising an electric discharge tube having the anode and control grid circuits regeneratively coupled so that negative pulses are generated at the anode, the duration of the pulses is controlled by feeding back to the anode via a capacitive circuit a positive pulse which is coincident with the negative pulse. The Figure shows a blocking oscillator which may be free-running or triggered by positive synchronizing pulses applied at terminal 25. The negative pulse generated at the anode of tube 18 appears as a positive pulse across winding 16 and is applied via cathodefollower stage 26 back to the anode of tube 18 to increase the duration of the negative pulse generated in dependence upon the time constant of the feedback path which may be controlled by varying the value of capacitor 32. The pulse repetition frequency may be controlled by variation of resistor 22. In a modification, Fig. 2 (not shown), the pulses for triggering the circuit are fed via a cathode-follower stage into the grid-cathode winding of the blocking-oscillator transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB407356A GB801602A (en) | 1956-02-09 | 1956-02-09 | Improvements in and relating to electrical systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB407356A GB801602A (en) | 1956-02-09 | 1956-02-09 | Improvements in and relating to electrical systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB801602A true GB801602A (en) | 1958-09-17 |
Family
ID=9770231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB407356A Expired GB801602A (en) | 1956-02-09 | 1956-02-09 | Improvements in and relating to electrical systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB801602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457578A (en) * | 2013-09-10 | 2013-12-18 | 昆山新金福精密电子有限公司 | Feedback type signal generation circuit |
-
1956
- 1956-02-09 GB GB407356A patent/GB801602A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457578A (en) * | 2013-09-10 | 2013-12-18 | 昆山新金福精密电子有限公司 | Feedback type signal generation circuit |
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