GB957907A - A transistor differential amplifier - Google Patents
A transistor differential amplifierInfo
- Publication number
- GB957907A GB957907A GB3370261A GB3370261A GB957907A GB 957907 A GB957907 A GB 957907A GB 3370261 A GB3370261 A GB 3370261A GB 3370261 A GB3370261 A GB 3370261A GB 957907 A GB957907 A GB 957907A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- transistors
- differential amplifier
- signals
- input
- 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
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
957,907. Transistor amplifying circuits. ENDEVCO CORPORATION. Sept. 20, 1961, No. 33702/61. Heading H3T. A differential amplifier comprises a pair of transistors 9, 10 with one electrode of each connected to a third transistor 16, the arrangement being such the third transistor constitutes a high impedance to attenuate unwanted unbalance signals introduced at the input to the two transistors so that only the desired differential signal is amplified. As shown, differential input signals are applied between the bases of transistors 9, 10 the common emitter current fed to transistor 16 remaining constant. Unwanted common signals applied in phase beteeen the input terminals 1, 2 and earth tend to change the common emitter current in conductor 19, but changes in this current are essentially prevented by the independent control of the emitter of the transistor 16. A number of such stages may be cascaded and the resistors may be replaced by reactive elements, provided correct biasing is maintained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3370261A GB957907A (en) | 1961-09-20 | 1961-09-20 | A transistor differential amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3370261A GB957907A (en) | 1961-09-20 | 1961-09-20 | A transistor differential amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB957907A true GB957907A (en) | 1964-05-13 |
Family
ID=10356358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3370261A Expired GB957907A (en) | 1961-09-20 | 1961-09-20 | A transistor differential amplifier |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB957907A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3324406A (en) * | 1964-05-20 | 1967-06-06 | Univ Oklahoma State | Power conserving biasing system for a class b push-pull transistor amplifier circuit |
-
1961
- 1961-09-20 GB GB3370261A patent/GB957907A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3324406A (en) * | 1964-05-20 | 1967-06-06 | Univ Oklahoma State | Power conserving biasing system for a class b push-pull transistor amplifier circuit |
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