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JPS573409A - Agc circuit - Google Patents

Agc circuit

Info

Publication number
JPS573409A
JPS573409A JP7642780A JP7642780A JPS573409A JP S573409 A JPS573409 A JP S573409A JP 7642780 A JP7642780 A JP 7642780A JP 7642780 A JP7642780 A JP 7642780A JP S573409 A JPS573409 A JP S573409A
Authority
JP
Japan
Prior art keywords
set level
circuit
level
amplifying circuit
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.)
Granted
Application number
JP7642780A
Other languages
Japanese (ja)
Other versions
JPS6218085B2 (en
Inventor
Takashi Ikeda
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7642780A priority Critical patent/JPS573409A/en
Publication of JPS573409A publication Critical patent/JPS573409A/en
Publication of JPS6218085B2 publication Critical patent/JPS6218085B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To reduce distortion and to make excellent the response, by taking a gain control signal via a level limit circuit. CONSTITUTION:An output of a gain variable amplifying circuit 1 is applied again to the amplifying circuit 1 as a gain control signal via a detection circuit 13, level limit circuit 16, integral network 14 and amplifying circuit 15. Thus, if a signal exceeds a set level, the signal is limited to the set level, and if the signal is less than the set level, it is applied to the integral network 14 as it is, allowing to keep the distortion at the set level maximum or lower.
JP7642780A 1980-06-06 1980-06-06 Agc circuit Granted JPS573409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7642780A JPS573409A (en) 1980-06-06 1980-06-06 Agc circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7642780A JPS573409A (en) 1980-06-06 1980-06-06 Agc circuit

Publications (2)

Publication Number Publication Date
JPS573409A true JPS573409A (en) 1982-01-08
JPS6218085B2 JPS6218085B2 (en) 1987-04-21

Family

ID=13604865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7642780A Granted JPS573409A (en) 1980-06-06 1980-06-06 Agc circuit

Country Status (1)

Country Link
JP (1) JPS573409A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6165180A (en) * 1984-09-07 1986-04-03 Tech Res & Dev Inst Of Japan Def Agency Method for compensating gain variation of radar
JP2008161895A (en) * 2006-12-27 2008-07-17 Showa Denko Kk Extrusion method and extrusion device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54151356A (en) * 1978-05-20 1979-11-28 Kopia Kk Automatic gain control amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54151356A (en) * 1978-05-20 1979-11-28 Kopia Kk Automatic gain control amplifier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6165180A (en) * 1984-09-07 1986-04-03 Tech Res & Dev Inst Of Japan Def Agency Method for compensating gain variation of radar
JP2008161895A (en) * 2006-12-27 2008-07-17 Showa Denko Kk Extrusion method and extrusion device

Also Published As

Publication number Publication date
JPS6218085B2 (en) 1987-04-21

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