JPS5434740A - Automatic gain control circuit - Google Patents

Automatic gain control circuit

Info

Publication number
JPS5434740A
JPS5434740A JP10046877A JP10046877A JPS5434740A JP S5434740 A JPS5434740 A JP S5434740A JP 10046877 A JP10046877 A JP 10046877A JP 10046877 A JP10046877 A JP 10046877A JP S5434740 A JPS5434740 A JP S5434740A
Authority
JP
Japan
Prior art keywords
control circuit
gain control
automatic gain
change
input
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.)
Pending
Application number
JP10046877A
Other languages
Japanese (ja)
Inventor
Shuichi Sakai
Shinsuke Iguchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10046877A priority Critical patent/JPS5434740A/en
Publication of JPS5434740A publication Critical patent/JPS5434740A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE: To secure an easy decision for the optimal circuit constant by controlling the current flowing to the input transistor of the amplifier based on the impedance change of the insulating gate type FET and thus reducing the change of the input/ output impedance.
COPYRIGHT: (C)1979,JPO&Japio
JP10046877A 1977-08-24 1977-08-24 Automatic gain control circuit Pending JPS5434740A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10046877A JPS5434740A (en) 1977-08-24 1977-08-24 Automatic gain control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10046877A JPS5434740A (en) 1977-08-24 1977-08-24 Automatic gain control circuit

Publications (1)

Publication Number Publication Date
JPS5434740A true JPS5434740A (en) 1979-03-14

Family

ID=14274730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10046877A Pending JPS5434740A (en) 1977-08-24 1977-08-24 Automatic gain control circuit

Country Status (1)

Country Link
JP (1) JPS5434740A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62287152A (en) * 1986-06-04 1987-12-14 Mitsubishi Electric Corp Transmission circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62287152A (en) * 1986-06-04 1987-12-14 Mitsubishi Electric Corp Transmission circuit

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