GB1128954A - Bistable circuit with two mutual feedback transistors - Google Patents
Bistable circuit with two mutual feedback transistorsInfo
- Publication number
- GB1128954A GB1128954A GB145566A GB145566A GB1128954A GB 1128954 A GB1128954 A GB 1128954A GB 145566 A GB145566 A GB 145566A GB 145566 A GB145566 A GB 145566A GB 1128954 A GB1128954 A GB 1128954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diodes
- zener diodes
- conducting
- input
- circuit
- 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
- 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
- H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
Landscapes
- Control Of Electrical Variables (AREA)
- Amplifiers (AREA)
Abstract
1,128,954. Bi-stable circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 12 Jan., 1966 [5 Feb., 1965], No. 1455/66. Heading H3T. A bi-stable circuit comprises two reciprocally coupled transistors with Zener diodes in series with ordinary diodes as coupling impedances which provide a high impedance from the output of the conducting device to the input of the cutoff device and a low impedance on the other side. In Fig. 3 the coupling impedances comprise diodes 55, 56 and Zener diodes 43, 44 optionally shunted by capacitors 45, 46 to increase the switching speed. The Zener diodes automatically switch between their conducting and cut-off or nearly cut-off states as the transistors 41, 42 change over, and thus provide adequate base current for the conducting transistor while preserving a high input impedance for the input circuit. Resistors 57, 58 and Zener diodes 43, 44 provide base currents which are independent of the loads 49, 60. The Specification also describes a circuit in which the diodes 55, 56 and resistors 57, 58 are omitted (Fig. 2, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1965T0027942 DE1257840B (en) | 1965-02-05 | 1965-02-05 | Bistable circuit with two mutually fed back amplifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1128954A true GB1128954A (en) | 1968-10-02 |
Family
ID=7553814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB145566A Expired GB1128954A (en) | 1965-02-05 | 1966-01-12 | Bistable circuit with two mutual feedback transistors |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE675801A (en) |
| DE (1) | DE1257840B (en) |
| GB (1) | GB1128954A (en) |
| NL (1) | NL6601474A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1246804A (en) * | 1967-11-29 | 1971-09-22 | Gen Electric Co Ltd | Improvements in or relating to digital transistor circuits |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3067336A (en) * | 1957-05-03 | 1962-12-04 | Honeywell Regulator Co | Bistable electronic switching circuitry for manipulating digital data |
| NL137423C (en) * | 1961-05-31 | |||
| NL280932A (en) * | 1961-07-14 |
-
1965
- 1965-02-05 DE DE1965T0027942 patent/DE1257840B/en active Pending
-
1966
- 1966-01-12 GB GB145566A patent/GB1128954A/en not_active Expired
- 1966-01-31 BE BE675801D patent/BE675801A/xx unknown
- 1966-02-04 NL NL6601474A patent/NL6601474A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1257840B (en) | 1968-01-04 |
| BE675801A (en) | 1966-05-16 |
| NL6601474A (en) | 1966-08-08 |
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