GB977768A - Improvements in or relating to electric oscillator circuits - Google Patents
Improvements in or relating to electric oscillator circuitsInfo
- Publication number
- GB977768A GB977768A GB4049862A GB4049862A GB977768A GB 977768 A GB977768 A GB 977768A GB 4049862 A GB4049862 A GB 4049862A GB 4049862 A GB4049862 A GB 4049862A GB 977768 A GB977768 A GB 977768A
- Authority
- GB
- United Kingdom
- Prior art keywords
- positive
- negative
- resistor
- oct
- transistors
- 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
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L5/00—Automatic control of voltage, current, or power
Abstract
977,768. Semi-conductor oscillating circuits. GENERAL ELECTRIC CO. Ltd., and J. A. ROBINSON. Oct. 17, 1963 [Oct. 25, 1962], No. 40498/62. Heading H3T. The signal path of an oscillator consisting of three amplifiers 1, 2, 3 is provided with a limiting circuit 7 comprising a first transistor 16 which conducts producing positive pulses if the instantaneous magnitude of the oscillatory signal becomes more negative than a predetermined negative value, and a second transistor 17 which conducts producing negative pulses if the instantaneous magnitude becomes more positive than a predetermined positive value. As described integrator amplifiers 1, 2 and adder 3 are connected in a closed loop so as to form an oscillatory circuit. Further positive feedback provided by the resistor 6 is opposed by the output from transistors 16, 17 to limit the amplitude of oscillation to 10 V. Temperature compensation is provided by diodes 27. The input to the transistors 16, 17 is fed via resistor 8 which controls the limiting point, and resistor 9 which controls the relative positive and negative clipping points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4049862A GB977768A (en) | 1962-10-25 | 1962-10-25 | Improvements in or relating to electric oscillator circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4049862A GB977768A (en) | 1962-10-25 | 1962-10-25 | Improvements in or relating to electric oscillator circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB977768A true GB977768A (en) | 1964-12-16 |
Family
ID=10415208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4049862A Expired GB977768A (en) | 1962-10-25 | 1962-10-25 | Improvements in or relating to electric oscillator circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB977768A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3711671A1 (en) * | 1987-04-07 | 1988-10-27 | Hartmut Schmidt | Tunable all-power oscillator with amplitude stabilisation for generating highly pure sinusoidal oscillations for electronic measurements |
-
1962
- 1962-10-25 GB GB4049862A patent/GB977768A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3711671A1 (en) * | 1987-04-07 | 1988-10-27 | Hartmut Schmidt | Tunable all-power oscillator with amplitude stabilisation for generating highly pure sinusoidal oscillations for electronic measurements |
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