JPS53110352A - Automatic gain control circuit - Google Patents

Automatic gain control circuit

Info

Publication number
JPS53110352A
JPS53110352A JP2502577A JP2502577A JPS53110352A JP S53110352 A JPS53110352 A JP S53110352A JP 2502577 A JP2502577 A JP 2502577A JP 2502577 A JP2502577 A JP 2502577A JP S53110352 A JPS53110352 A JP S53110352A
Authority
JP
Japan
Prior art keywords
gain control
control circuit
automatic gain
constant
signal
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
JP2502577A
Other languages
Japanese (ja)
Inventor
Yasumori Hibi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP2502577A priority Critical patent/JPS53110352A/en
Publication of JPS53110352A publication Critical patent/JPS53110352A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers

Abstract

PURPOSE:To secure a constant control signal even at the input time of the trasnsient answer signal and thus to prevent the oscillation, by monitoring the input signal or the output signal and then keeping the detection output constant when these signals exceed the gain control range or varying the constant at the detection time.
JP2502577A 1977-03-08 1977-03-08 Automatic gain control circuit Pending JPS53110352A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2502577A JPS53110352A (en) 1977-03-08 1977-03-08 Automatic gain control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2502577A JPS53110352A (en) 1977-03-08 1977-03-08 Automatic gain control circuit

Publications (1)

Publication Number Publication Date
JPS53110352A true JPS53110352A (en) 1978-09-27

Family

ID=12154362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2502577A Pending JPS53110352A (en) 1977-03-08 1977-03-08 Automatic gain control circuit

Country Status (1)

Country Link
JP (1) JPS53110352A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01143475A (en) * 1987-11-30 1989-06-06 Ikegami Tsushinki Co Ltd Automatic gain controller

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5183453A (en) * 1975-01-20 1976-07-22 Hitachi Electronics JIDORITOKUSEIGYOHOSHIKI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5183453A (en) * 1975-01-20 1976-07-22 Hitachi Electronics JIDORITOKUSEIGYOHOSHIKI

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01143475A (en) * 1987-11-30 1989-06-06 Ikegami Tsushinki Co Ltd Automatic gain controller

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