JPS59127326U - amplifier - Google Patents

amplifier

Info

Publication number
JPS59127326U
JPS59127326U JP2020983U JP2020983U JPS59127326U JP S59127326 U JPS59127326 U JP S59127326U JP 2020983 U JP2020983 U JP 2020983U JP 2020983 U JP2020983 U JP 2020983U JP S59127326 U JPS59127326 U JP S59127326U
Authority
JP
Japan
Prior art keywords
amplifier
operational amplifier
cutoff frequency
inverting input
input terminal
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
JP2020983U
Other languages
Japanese (ja)
Inventor
茂 斉藤
梅木　功
Original Assignee
パイオニア株式会社
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 パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP2020983U priority Critical patent/JPS59127326U/en
Publication of JPS59127326U publication Critical patent/JPS59127326U/en
Pending legal-status Critical Current

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Landscapes

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

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の増幅器のブロック図、第２図は第１図の
増幅器の周波数特性図、第３図はこの考案の増幅器の一
実施例を示すブロック図、第４図は第３図の増幅器の周
波数特性図である。 １・・・演算増幅器、２・・・トーンコントロール回路
、２ａ・・・トレブルボリウム、３・・・カットオフ周
波数可変手段。Fig. 1 is a block diagram of a conventional amplifier, Fig. 2 is a frequency characteristic diagram of the amplifier of Fig. 1, Fig. 3 is a block diagram showing an embodiment of the amplifier of this invention, and Fig. 4 is a diagram of the amplifier of Fig. 3. It is a frequency characteristic diagram of an amplifier. DESCRIPTION OF SYMBOLS 1... Operational amplifier, 2... Tone control circuit, 2a... Treble volume, 3... Cutoff frequency variable means.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 非反転入力端に入力信号を導入して増幅する演算増幅器
と、この演算増幅器の出力端と反転入力端間に接続され
て負帰還機構を呈するとともにトレブルボリウムを備え
たトーンコントロール回路′　　　と、上記トレブルボ
リウムに連動しこのトレブルボリウムを絞ったときに上
記演算増幅器の出力のカットオフ周波数を小さくするよ
うに可変するカットオフ周波数可変手段とよりなる増幅
器。an operational amplifier that introduces and amplifies an input signal to its non-inverting input terminal; a tone control circuit that is connected between the output terminal of the operational amplifier and the inverting input terminal and exhibits a negative feedback mechanism and is equipped with a treble volume; An amplifier comprising cutoff frequency variable means that is linked to a treble volume and varies the cutoff frequency of the output of the operational amplifier to be reduced when the treble volume is turned down.
JP2020983U 1983-02-14 1983-02-14 amplifier Pending JPS59127326U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2020983U JPS59127326U (en) 1983-02-14 1983-02-14 amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020983U JPS59127326U (en) 1983-02-14 1983-02-14 amplifier

Publications (1)

Publication Number Publication Date
JPS59127326U true JPS59127326U (en) 1984-08-27

Family

ID=30151338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020983U Pending JPS59127326U (en) 1983-02-14 1983-02-14 amplifier

Country Status (1)

Country Link
JP (1) JPS59127326U (en)

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