GB719915A - Improvements in and relating to automatic gain control circuits - Google Patents

Improvements in and relating to automatic gain control circuits

Info

Publication number
GB719915A
GB719915A GB30087/52A GB3008752A GB719915A GB 719915 A GB719915 A GB 719915A GB 30087/52 A GB30087/52 A GB 30087/52A GB 3008752 A GB3008752 A GB 3008752A GB 719915 A GB719915 A GB 719915A
Authority
GB
United Kingdom
Prior art keywords
cathode
gain control
automatic gain
anode
output
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
GB30087/52A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB719915A publication Critical patent/GB719915A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/34—Gain of receiver varied automatically during pulse-recurrence period, e.g. anti-clutter gain control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

719,915. Automatic gain control; pulse radar. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 27, 1952 [Nov. 30, 1951], No. 30087/52. Classes 40 (5) and 40 (7) In a rapidly acting automatic gain control circuit for a radar receiver, of the type in which the output of the A.G.C. rectifier is fed through a cathode follower to the controlled stage, means are provided for open-circuiting the anode cathode path of the cathode follower at a point which is at earth potential for radio frequencies so that the gain control may be rendered inoperative. The output of amplifier V2 is rectified in a valve V4 connected as a diode, the output of which is fed through a cathode follower to control the gain of amplifier V2. Means (not shown) are provided between the anode of V5 and the lower end of R4 for interrupting the circuit to disable the A.G.C. The connection of the cathode of V4 to the cathode of V5 provides a regenerative action for the A.G.C. voltage. Valve V4 may alternatively be arranged as an anode bend detector, Fig. 2 (not shown).
GB30087/52A 1951-11-30 1952-11-27 Improvements in and relating to automatic gain control circuits Expired GB719915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1046054T 1951-11-30

Publications (1)

Publication Number Publication Date
GB719915A true GB719915A (en) 1954-12-08

Family

ID=9592042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30087/52A Expired GB719915A (en) 1951-11-30 1952-11-27 Improvements in and relating to automatic gain control circuits

Country Status (2)

Country Link
FR (1) FR1046054A (en)
GB (1) GB719915A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115773A (en) * 1977-02-02 1978-09-19 Del Norte Technology, Inc. Synchronized pulse amplitude control for pulse measuring circuits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115773A (en) * 1977-02-02 1978-09-19 Del Norte Technology, Inc. Synchronized pulse amplitude control for pulse measuring circuits

Also Published As

Publication number Publication date
FR1046054A (en) 1953-12-03

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