GB747220A - Improvements relating to transistor amplifiers - Google Patents
Improvements relating to transistor amplifiersInfo
- Publication number
- GB747220A GB747220A GB6860/54A GB686054A GB747220A GB 747220 A GB747220 A GB 747220A GB 6860/54 A GB6860/54 A GB 6860/54A GB 686054 A GB686054 A GB 686054A GB 747220 A GB747220 A GB 747220A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- emitter
- transistor
- resistor
- base
- 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 3
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—DC amplifiers in which all stages are DC-coupled
- H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
747,220. Transistor amplifying circuits. GENERAL ELECTRIC CO. March 9, 1954 [March 9, 1953], No. 6860/54. Class 40 (6). In a D.C. connected cascaded junction transistor amplifier, a resistor is included in the baseemitter circuit of each transistor, other than the first, to prevent the low input impedance of the transistor from short-circuiting the high impedance circuit of the previous collector circuit. Input signals from source 47, applied to the base-emitter circuit 14, 16, appear in amplified form in the collector-emitter circuit 11, 16 and are fed directly to the base-emitter circuit 19, 20. A resistor 39 in series with the base-emitter circuit 19, 20 increases the resistance presented to the emitter-collector circuit 11, 16. To reduce the loss in gain at high frequencies a capacitor 47 may be added. In a modification, Fig. 2 (not shown), the resistor 39 and capacitor 47 are arranged in the emitter load. As an alternative resistors and capacitors may be arranged in each position. Specification 728,129, [Group XXXVI], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US747220XA | 1953-03-09 | 1953-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB747220A true GB747220A (en) | 1956-03-28 |
Family
ID=22121269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6860/54A Expired GB747220A (en) | 1953-03-09 | 1954-03-09 | Improvements relating to transistor amplifiers |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE527087A (en) |
| FR (1) | FR1108118A (en) |
| GB (1) | GB747220A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1183124B (en) * | 1960-05-05 | 1964-12-10 | Philips Nv | Circuit arrangement for logic circuits constructed from separate units |
-
0
- BE BE527087D patent/BE527087A/xx unknown
-
1954
- 1954-03-05 FR FR1108118D patent/FR1108118A/en not_active Expired
- 1954-03-09 GB GB6860/54A patent/GB747220A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1183124B (en) * | 1960-05-05 | 1964-12-10 | Philips Nv | Circuit arrangement for logic circuits constructed from separate units |
Also Published As
| Publication number | Publication date |
|---|---|
| BE527087A (en) | |
| FR1108118A (en) | 1956-01-09 |
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