GB484332A - Improvements in or relating to electrical amplifier circuits employing negative reaction - Google Patents

Improvements in or relating to electrical amplifier circuits employing negative reaction

Info

Publication number
GB484332A
GB484332A GB3583036A GB3583036A GB484332A GB 484332 A GB484332 A GB 484332A GB 3583036 A GB3583036 A GB 3583036A GB 3583036 A GB3583036 A GB 3583036A GB 484332 A GB484332 A GB 484332A
Authority
GB
United Kingdom
Prior art keywords
impedance
load
cases
zero
negative reaction
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
GB3583036A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3583036A priority Critical patent/GB484332A/en
Publication of GB484332A publication Critical patent/GB484332A/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
    • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

484,332. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., and FARREN, L. I. Dec. 31, 1936, Nos 35830/36 and 2643/37. [Class 40 (v)] In a negative reaction amplifier having elements Z 1 .. Z5 producing feedback and a load impedance Z varying considerably with frequency over the operating range, one of the elements is of the form aZ +b, where a and b are independent of frequency and are positive or in the case of b may be zero. The values of a and b are so chosen that the current or the voltage in the load is stabilized and the output impedance is stabilized, or matched to the load, or is less than Ra the impedance of the output stage. The Specification gives a mathematical analysis and the circuit arrangement for obtaining each of the above conditions which involve one or more of the impedances Z 1 .. Z being reactive and in some cases the use of zero and infinite impedances. In some cases for current stabilization an impedance having a negative resistance component may be required, but the conditions will be substantially satisfied if the resistance is in these cases made zero.
GB3583036A 1936-12-31 1936-12-31 Improvements in or relating to electrical amplifier circuits employing negative reaction Expired GB484332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3583036A GB484332A (en) 1936-12-31 1936-12-31 Improvements in or relating to electrical amplifier circuits employing negative reaction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3583036A GB484332A (en) 1936-12-31 1936-12-31 Improvements in or relating to electrical amplifier circuits employing negative reaction

Publications (1)

Publication Number Publication Date
GB484332A true GB484332A (en) 1938-05-04

Family

ID=10381961

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3583036A Expired GB484332A (en) 1936-12-31 1936-12-31 Improvements in or relating to electrical amplifier circuits employing negative reaction

Country Status (1)

Country Link
GB (1) GB484332A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494426A (en) * 1943-03-04 1950-01-10 Hartford Nat Bank & Trust Co Amplifier with negative feedback
US2915695A (en) * 1953-05-29 1959-12-01 Honeywell Regulator Co Electric signal transducer
US3370246A (en) * 1965-03-19 1968-02-20 Donald F. O'brien Alternating current power controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494426A (en) * 1943-03-04 1950-01-10 Hartford Nat Bank & Trust Co Amplifier with negative feedback
US2915695A (en) * 1953-05-29 1959-12-01 Honeywell Regulator Co Electric signal transducer
US3370246A (en) * 1965-03-19 1968-02-20 Donald F. O'brien Alternating current power controller

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