GB1114511A - Improvements in or relating to feedback amplifiers - Google Patents

Improvements in or relating to feedback amplifiers

Info

Publication number
GB1114511A
GB1114511A GB3272465A GB3272465A GB1114511A GB 1114511 A GB1114511 A GB 1114511A GB 3272465 A GB3272465 A GB 3272465A GB 3272465 A GB3272465 A GB 3272465A GB 1114511 A GB1114511 A GB 1114511A
Authority
GB
United Kingdom
Prior art keywords
amplifier
feedback
linear
circuit
july
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
GB3272465A
Inventor
Richard Bryan Douglas Knight
Raymond Frederic Monger
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.)
DYNAMCO INSTR Ltd
Original Assignee
DYNAMCO INSTR Ltd
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 DYNAMCO INSTR Ltd filed Critical DYNAMCO INSTR Ltd
Priority to GB3272465A priority Critical patent/GB1114511A/en
Publication of GB1114511A publication Critical patent/GB1114511A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)

Abstract

1,114,511. Non-linear, quadratic circuits. DYNAMCO INSTRUMENTS Ltd. 21 July, 1966 [30 July, 1965], No. 32724/65. Heading G4G. A feedback amplifier, for generating a non- linear transfer function, e.g. a relation between input and output voltage of the form is modified so that the use of a high-gain amplifier is not essential. The amplifier comprises a linear amplifier A having a further stage of amplification embodying an N.P.N. transistor TR1, the collector circuit of which includes two resistors R 2 , R 3 , and a diode D1, the latter producing an approximate relation between the amplifier gain M without feedback and the output voltage Vout of the form where 0 = constant. The feedback circuit B includes a heater filament h1 and a thermocouple T1 which produces a feedback voltage VFB = KV<SP>2</SP>out. Now the effective voltage across the amplifier = Vin - VFB and also equal to Vout/M. The circuit is applicable to the generation of any nonlinear function.
GB3272465A 1965-07-30 1965-07-30 Improvements in or relating to feedback amplifiers Expired GB1114511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3272465A GB1114511A (en) 1965-07-30 1965-07-30 Improvements in or relating to feedback amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3272465A GB1114511A (en) 1965-07-30 1965-07-30 Improvements in or relating to feedback amplifiers

Publications (1)

Publication Number Publication Date
GB1114511A true GB1114511A (en) 1968-05-22

Family

ID=10343071

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3272465A Expired GB1114511A (en) 1965-07-30 1965-07-30 Improvements in or relating to feedback amplifiers

Country Status (1)

Country Link
GB (1) GB1114511A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1946444A2 (en) * 2005-11-07 2008-07-23 Lawson Labs, Inc. Power conversion regulator with exponentiating feedback loop

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1946444A2 (en) * 2005-11-07 2008-07-23 Lawson Labs, Inc. Power conversion regulator with exponentiating feedback loop
EP1946444A4 (en) * 2005-11-07 2009-10-28 Lawson Labs Inc Power conversion regulator with exponentiating feedback loop

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