GB940980A - Improvements in or relating to circuit arrangements embodying transistors - Google Patents
Improvements in or relating to circuit arrangements embodying transistorsInfo
- Publication number
- GB940980A GB940980A GB540059A GB540059A GB940980A GB 940980 A GB940980 A GB 940980A GB 540059 A GB540059 A GB 540059A GB 540059 A GB540059 A GB 540059A GB 940980 A GB940980 A GB 940980A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- emitter
- base
- relating
- decoupled
- 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
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
940,980. Transistor amplifying circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 16, 1960 [Feb. 17, 1959], No. 5400/59. Heading H3T. In order to reduce the shunting effect of the D.C. feedback stabilizing path on the input impedance of an emitter follower an intermediate point of the path is decoupled to a point in the circuit where there occur voltage variations corresponding to and of the same polarity as the voltage applied to the base of the emitter follower. D.C. feedback is over resistors R 4 , R 5 connected between the collector and base of transistor T, Fig. 3, or between the collector of transistor T2, connected in cascade with transistor T 1 , Fig. 4, and the base of the latter. The junction of resistors R 4 , R 5 is decoupled by capacitor C 2 to the emitter of transistor T or the emitter of T 2 ; in the latter case the input resistance of the transistor T 2 stage is employed as the emitter load of the transistor T 1 stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB540059A GB940980A (en) | 1959-02-17 | 1959-02-17 | Improvements in or relating to circuit arrangements embodying transistors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB540059A GB940980A (en) | 1959-02-17 | 1959-02-17 | Improvements in or relating to circuit arrangements embodying transistors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB940980A true GB940980A (en) | 1963-11-06 |
Family
ID=9795455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB540059A Expired GB940980A (en) | 1959-02-17 | 1959-02-17 | Improvements in or relating to circuit arrangements embodying transistors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB940980A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1256768B (en) * | 1963-04-30 | 1967-12-21 | Bailey Controle | Electronic proportional-integral controller |
| GB2272122A (en) * | 1992-10-28 | 1994-05-04 | Plessey Semiconductors Ltd | Wideband constant impedance amplifiers. |
-
1959
- 1959-02-17 GB GB540059A patent/GB940980A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1256768B (en) * | 1963-04-30 | 1967-12-21 | Bailey Controle | Electronic proportional-integral controller |
| GB2272122A (en) * | 1992-10-28 | 1994-05-04 | Plessey Semiconductors Ltd | Wideband constant impedance amplifiers. |
| US5382919A (en) * | 1992-10-28 | 1995-01-17 | Plessey Semiconductors Limited | Wideband constant impedance amplifiers |
| GB2272122B (en) * | 1992-10-28 | 1996-07-17 | Plessey Semiconductors Ltd | Wideband constant impedance amplifiers |
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