GB814185A - Transistor circuits - Google Patents
Transistor circuitsInfo
- Publication number
- GB814185A GB814185A GB1808556A GB1808556A GB814185A GB 814185 A GB814185 A GB 814185A GB 1808556 A GB1808556 A GB 1808556A GB 1808556 A GB1808556 A GB 1808556A GB 814185 A GB814185 A GB 814185A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base
- transistor
- curve
- june
- capacitor
- 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
- 239000003990 capacitor Substances 0.000 abstract 2
- 230000001960 triggered 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
- H03K3/335—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of semiconductor devices with more than two electrodes and exhibiting avalanche effect
Landscapes
- Amplifiers (AREA)
Abstract
814,185. Transistor generating and two stable state circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 12, 1957 [June 12, 1956], No. 18085/56. Class 40 (6). In a circuit employing a junction transistor 1, Fig. 1, the base is so biased relative to the emitter that the transistor operates in the avalanche mode with a base current equal to or greater than that which occurs at the " critical point " in the collector current-voltage curve, Fig. 2. It is stated that as the reverse base current is increased, the characteristic curves 10 ... 19 are traced out to provide a curve 20 as the locus of the discontinuities in the curves, the point 21 where the curve 20 reverses its direction being the " critical point." The base of transistor 1 is reversely biased by supply 3 on resistor R2 and is triggered to a highly conducting state by a positive pulse applied over the capacitor Cl and reset by a negative pulse. A capacitor may be connected between collector and base, Fig. 4 (not shown), so that the negative impedance causes the circuit to generate sawtooth waves.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB814185A true GB814185A (en) | 1959-06-03 |
Family
ID=1733630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1808556A Expired GB814185A (en) | 1956-06-12 | Transistor circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB814185A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3230399A (en) * | 1964-06-03 | 1966-01-18 | Collins Radio Co | Frequency divider |
| US3260965A (en) * | 1962-08-07 | 1966-07-12 | Bell Telephone Labor Inc | Variable impedance network employing a junction transistor |
| US3328605A (en) * | 1964-09-30 | 1967-06-27 | Abraham George | Multiple avalanche device |
| US3328609A (en) * | 1963-10-24 | 1967-06-27 | Siderurgie Fse Inst Rech | Electrical energizing circuit for a piezoelectric element |
-
1956
- 1956-06-12 GB GB1808556A patent/GB814185A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3260965A (en) * | 1962-08-07 | 1966-07-12 | Bell Telephone Labor Inc | Variable impedance network employing a junction transistor |
| US3328609A (en) * | 1963-10-24 | 1967-06-27 | Siderurgie Fse Inst Rech | Electrical energizing circuit for a piezoelectric element |
| US3230399A (en) * | 1964-06-03 | 1966-01-18 | Collins Radio Co | Frequency divider |
| US3328605A (en) * | 1964-09-30 | 1967-06-27 | Abraham George | Multiple avalanche device |
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