JPS57141113A - Output characteristic control circuit for amplifier - Google Patents

Output characteristic control circuit for amplifier

Info

Publication number
JPS57141113A
JPS57141113A JP56026283A JP2628381A JPS57141113A JP S57141113 A JPS57141113 A JP S57141113A JP 56026283 A JP56026283 A JP 56026283A JP 2628381 A JP2628381 A JP 2628381A JP S57141113 A JPS57141113 A JP S57141113A
Authority
JP
Japan
Prior art keywords
amplifier
terminal
input terminal
interposed
resistance
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
JP56026283A
Other languages
Japanese (ja)
Other versions
JPH0353801B2 (en
Inventor
Kenji Yokoyama
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki 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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP56026283A priority Critical patent/JPS57141113A/en
Publication of JPS57141113A publication Critical patent/JPS57141113A/en
Publication of JPH0353801B2 publication Critical patent/JPH0353801B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To cancel the impedance of a line for load connection by controlling the output impedance of an amplifier side at a load connection terminal in accordance with the extent of the feedback of the detection output of a current detecting circuit. CONSTITUTION:A signal input terminal 1 is connected to the noninverted input terminal 4a of an amplifier 4. A resistance 2 for feedback division is interposed between the inverted input terminal 4b of the amplifier 4 and a grounding point, and a resistane 3 for feedback division is also interposed between the inverted input terminal 4b and the output terminal 4c of the amplifier 4. Further, a resistance 7 is interposed between the output terminal 4c of the amplifier 4 and a load terminal. One terminal of the resistace 7 on the side of a control amplifier 8 is connected to the inverted input terminal of the control amplifier 8, and the other end of the resistance is also connected to the noninverted input terminal of the control amplifier 8. The control amplifer outputs a differential voltage, applied between the noninverted and inverted input terminals, according to its transfer characteristics.
JP56026283A 1981-02-25 1981-02-25 Output characteristic control circuit for amplifier Granted JPS57141113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56026283A JPS57141113A (en) 1981-02-25 1981-02-25 Output characteristic control circuit for amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56026283A JPS57141113A (en) 1981-02-25 1981-02-25 Output characteristic control circuit for amplifier

Publications (2)

Publication Number Publication Date
JPS57141113A true JPS57141113A (en) 1982-09-01
JPH0353801B2 JPH0353801B2 (en) 1991-08-16

Family

ID=12188953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56026283A Granted JPS57141113A (en) 1981-02-25 1981-02-25 Output characteristic control circuit for amplifier

Country Status (1)

Country Link
JP (1) JPS57141113A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611850A (en) * 1983-12-14 1986-09-16 Toyota Jidosha Kabushiki Kaisha Clip device for fixing window glass in motor vehicle
JPS6412703A (en) * 1987-07-07 1989-01-17 Matsushita Electric Ind Co Ltd Variable output resistance amplifier circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55162421U (en) * 1979-05-09 1980-11-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55162421U (en) * 1979-05-09 1980-11-21

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611850A (en) * 1983-12-14 1986-09-16 Toyota Jidosha Kabushiki Kaisha Clip device for fixing window glass in motor vehicle
JPS6412703A (en) * 1987-07-07 1989-01-17 Matsushita Electric Ind Co Ltd Variable output resistance amplifier circuit

Also Published As

Publication number Publication date
JPH0353801B2 (en) 1991-08-16

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