GB635834A - Improvements in or relating to feed-back circuit arrangements - Google Patents

Improvements in or relating to feed-back circuit arrangements

Info

Publication number
GB635834A
GB635834A GB9194/47A GB919447A GB635834A GB 635834 A GB635834 A GB 635834A GB 9194/47 A GB9194/47 A GB 9194/47A GB 919447 A GB919447 A GB 919447A GB 635834 A GB635834 A GB 635834A
Authority
GB
United Kingdom
Prior art keywords
valve
feedback
input
output
fed
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
GB9194/47A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB635834A publication Critical patent/GB635834A/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

635,834. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and GEORGE, D. F. April 3, 1947, No. 9194. [Class 40 (vi)] Part of the input to a valve amplifier is applied to the control grid of a valve in the feedback path, and a feedback voltage is fed to its cathode. As shown, part of the input to a push-pull amplifier V1, V2 is applied to grids of valve PV1, PV2. A voltage taken from a variable tapping on a resistance across the primary of the output transformer T is fed to the cathode of each feedback valve PV1, PV2, and the output of each valve PV1, PV2 is fed back to the input of the pushpull valves V1, V2. In this manner maximum feedback is provided if the output is 180 degrees out of phase with the input, but if the output is not exactly in antiphase the feedback is reduced.
GB9194/47A 1947-04-03 1947-04-03 Improvements in or relating to feed-back circuit arrangements Expired GB635834A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB273257X 1947-04-03
GB10148X 1948-01-01

Publications (1)

Publication Number Publication Date
GB635834A true GB635834A (en) 1950-04-19

Family

ID=26236360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9194/47A Expired GB635834A (en) 1947-04-03 1947-04-03 Improvements in or relating to feed-back circuit arrangements

Country Status (2)

Country Link
CH (1) CH273257A (en)
GB (1) GB635834A (en)

Also Published As

Publication number Publication date
CH273257A (en) 1951-01-31

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