GB737249A - Electric signal translating circuits employing transistors - Google Patents
Electric signal translating circuits employing transistorsInfo
- Publication number
- GB737249A GB737249A GB31961/53A GB3196153A GB737249A GB 737249 A GB737249 A GB 737249A GB 31961/53 A GB31961/53 A GB 31961/53A GB 3196153 A GB3196153 A GB 3196153A GB 737249 A GB737249 A GB 737249A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base
- collector
- phase
- emitter
- transformer
- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/347—Negative-feedback-circuit arrangements with or without positive feedback using transformers
-
- 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
- H03F1/42—Modifications of amplifiers to extend the bandwidth
- H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
737,249. Transistor amplifying circuits. WESTERN ELECTRIC CO., Inc. Nov. 18, 1953 [Nov. 19, 1952], No. 31961/53. Class 40 (6). In an amplifier the bandwidth of the circuit is made equal to or greater than the alpha frequency cut-off by the employment of negative feedback equal to or greater than the positive feedback introduced by the base resistance. A non-phase inverting transformer 17, Fig. 3A, is employed in an earthed base circuit with feedback from the collector to the base or alternatively, Fig. 4A (not shown) a phase-inverting transformer may be used between the base and emitter connections. In a similar manner, Fig. 5A, a phase-inverting transformer 23 is em-. ployed between collector and emitter in an earthed emitter circuit or a non-phase-inverting transformer may be used between collector and base, Fig. 6 (not shown). In a modification, Fig. 7, employing an earthed collector, a phaseinverting transformer 29 is employed between the emitter and base or a non-phase-inverting transformer, Fig. 8 (not shown), between emitter and collector. A detailed mathematical discussion is included in the Specification.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US737249XA | 1952-11-19 | 1952-11-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB737249A true GB737249A (en) | 1955-09-21 |
Family
ID=22115422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31961/53A Expired GB737249A (en) | 1952-11-19 | 1953-11-18 | Electric signal translating circuits employing transistors |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE954431C (en) |
FR (1) | FR1086996A (en) |
GB (1) | GB737249A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2939040A (en) * | 1957-08-30 | 1960-05-31 | Zenith Radio Corp | Scanning generator |
US2983830A (en) * | 1956-04-11 | 1961-05-09 | United Aircraft Corp | High impedance transistor pick-off circuit |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1081054B (en) * | 1958-06-26 | 1960-05-05 | Siemens Ag | Transistor amplifier stage in a combined base / emitter circuit |
NL229968A (en) * | 1958-07-26 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE720125C (en) * | 1937-01-18 | 1942-04-24 | Telefunken Gmbh | Cascade amplifier with changeable negative feedback |
-
1953
- 1953-09-03 FR FR1086996D patent/FR1086996A/en not_active Expired
- 1953-10-01 DE DEW12237A patent/DE954431C/en not_active Expired
- 1953-11-18 GB GB31961/53A patent/GB737249A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2983830A (en) * | 1956-04-11 | 1961-05-09 | United Aircraft Corp | High impedance transistor pick-off circuit |
US2939040A (en) * | 1957-08-30 | 1960-05-31 | Zenith Radio Corp | Scanning generator |
Also Published As
Publication number | Publication date |
---|---|
DE954431C (en) | 1956-12-20 |
FR1086996A (en) | 1955-02-17 |
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