GB737249A - Electric signal translating circuits employing transistors - Google Patents

Electric signal translating circuits employing transistors

Info

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
Application number
GB31961/53A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB737249A publication Critical patent/GB737249A/en
Expired legal-status Critical Current

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.
GB31961/53A 1952-11-19 1953-11-18 Electric signal translating circuits employing transistors Expired GB737249A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
FR1230932A (en) * 1958-07-26 1960-09-21

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE720125C (en) * 1937-01-18 1942-04-24 Telefunken Gmbh Cascade amplifier with changeable negative feedback

Cited By (2)

* Cited by examiner, † Cited by third party
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
FR1086996A (en) 1955-02-17
DE954431C (en) 1956-12-20

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