GB805359A - Improvements in or relating to circuit arrangements embodying transistors - Google Patents
Improvements in or relating to circuit arrangements embodying transistorsInfo
- Publication number
- GB805359A GB805359A GB2200657A GB2200657A GB805359A GB 805359 A GB805359 A GB 805359A GB 2200657 A GB2200657 A GB 2200657A GB 2200657 A GB2200657 A GB 2200657A GB 805359 A GB805359 A GB 805359A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- battery
- circuit arrangements
- potentiometer
- 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
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
- H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Amplifiers (AREA)
Abstract
805,359. Transistor circuits. TELEFUNKEN G.m.b.H. July 11, 1957 [July 12, 1956], No. 22006/57. Class 40 (6). A transistor has the bias for one electrode (e.g. the base) obtained from a potentiometer 9, 10 and variations in the bias voltage are reduced by connecting a rechargeable battery 13 in parallel with one arm of the potentiometer and arranging that over at least part of the range of variation the battery is charged by the potentiometer. The same battery may be used for stabilizing the bias of other transistors and a switch 14, preferably controlled by the main on-off switch for the circuit, may be provided for disconnecting the battery.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET12442A DE1043402B (en) | 1956-07-12 | 1956-07-12 | Arrangement for keeping the emitter current of a transistor amplifier stage constant in an emitter circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
GB805359A true GB805359A (en) | 1958-12-03 |
Family
ID=7547019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2200657A Expired GB805359A (en) | 1956-07-12 | 1957-07-11 | Improvements in or relating to circuit arrangements embodying transistors |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1043402B (en) |
GB (1) | GB805359A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1143859B (en) * | 1961-03-03 | 1963-02-21 | Ernst Gass Dipl Ing | Power amplifier with two transistors |
DE1194455B (en) * | 1962-09-29 | 1965-06-10 | Diehl Fa | Transistor switching amplifier, especially for use in self-controlling clock drives |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE512041C (en) * | 1927-04-22 | 1930-11-05 | Reinhard Rabe | Device for drawing the electrical energy required for radio equipment from the lighting network |
US2716729A (en) * | 1951-11-24 | 1955-08-30 | Bell Telephone Labor Inc | Transistor circuits with constant output current |
BE520632A (en) * | 1952-06-13 | |||
BE536128A (en) * | 1954-03-01 |
-
1956
- 1956-07-12 DE DET12442A patent/DE1043402B/en active Pending
-
1957
- 1957-07-11 GB GB2200657A patent/GB805359A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1043402B (en) | 1958-11-13 |
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