JPS5296851A - Gain control unit - Google Patents

Gain control unit

Info

Publication number
JPS5296851A
JPS5296851A JP1345376A JP1345376A JPS5296851A JP S5296851 A JPS5296851 A JP S5296851A JP 1345376 A JP1345376 A JP 1345376A JP 1345376 A JP1345376 A JP 1345376A JP S5296851 A JPS5296851 A JP S5296851A
Authority
JP
Japan
Prior art keywords
gain control
control unit
dependancy
making
current
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.)
Granted
Application number
JP1345376A
Other languages
Japanese (ja)
Other versions
JPS5712325B2 (en
Inventor
Akio Hashima
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1345376A priority Critical patent/JPS5296851A/en
Publication of JPS5296851A publication Critical patent/JPS5296851A/en
Publication of JPS5712325B2 publication Critical patent/JPS5712325B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
    • H03G1/0029—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier using FETs

Abstract

PURPOSE:To make the circuit simpler and to increase the gain control quantity, by making the gain control thru the use of the impedance element of current dependancy with the amplifying elements.
JP1345376A 1976-02-09 1976-02-09 Gain control unit Granted JPS5296851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1345376A JPS5296851A (en) 1976-02-09 1976-02-09 Gain control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1345376A JPS5296851A (en) 1976-02-09 1976-02-09 Gain control unit

Publications (2)

Publication Number Publication Date
JPS5296851A true JPS5296851A (en) 1977-08-15
JPS5712325B2 JPS5712325B2 (en) 1982-03-10

Family

ID=11833552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1345376A Granted JPS5296851A (en) 1976-02-09 1976-02-09 Gain control unit

Country Status (1)

Country Link
JP (1) JPS5296851A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5340256A (en) * 1976-09-27 1978-04-12 Alps Electric Co Ltd Automatic gain controller
JPS55135515U (en) * 1979-03-20 1980-09-26
JPH01105609A (en) * 1987-10-19 1989-04-24 Hitachi Ltd Agc circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5252352A (en) * 1975-07-25 1977-04-27 Texas Instruments Deutschland Rf input stage variable amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5252352A (en) * 1975-07-25 1977-04-27 Texas Instruments Deutschland Rf input stage variable amplifier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5340256A (en) * 1976-09-27 1978-04-12 Alps Electric Co Ltd Automatic gain controller
JPS55135515U (en) * 1979-03-20 1980-09-26
JPS6223140Y2 (en) * 1979-03-20 1987-06-12
JPH01105609A (en) * 1987-10-19 1989-04-24 Hitachi Ltd Agc circuit

Also Published As

Publication number Publication date
JPS5712325B2 (en) 1982-03-10

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