JPH0353023U - - Google Patents

Info

Publication number
JPH0353023U
JPH0353023U JP11342189U JP11342189U JPH0353023U JP H0353023 U JPH0353023 U JP H0353023U JP 11342189 U JP11342189 U JP 11342189U JP 11342189 U JP11342189 U JP 11342189U JP H0353023 U JPH0353023 U JP H0353023U
Authority
JP
Japan
Prior art keywords
differential amplifier
circuit
input terminal
amplifier circuit
electronic
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
JP11342189U
Other languages
English (en)
Other versions
JPH0628824Y2 (ja
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 filed Critical
Priority to JP11342189U priority Critical patent/JPH0628824Y2/ja
Publication of JPH0353023U publication Critical patent/JPH0353023U/ja
Application granted granted Critical
Publication of JPH0628824Y2 publication Critical patent/JPH0628824Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Control Of Amplification And Gain Control (AREA)

Description

【図面の簡単な説明】
第１図はこの考案による電子アツテネータ回路
の一実施例を示す回路図、第２図は第１図に示す
実施例における定電流回路を抵抗に置き換えた例
を示す回路図、第３図は従来の電子アツテネータ
回路の基本回路図である。 ＴＲ１〜ＴＲ１１……トランジスタ、Ｒ１〜Ｒ
１３，Ｒ１５，Ｒ２１〜Ｒ２３……抵抗、Ｄ１，
Ｄ２，Ｄ３……ダイオード、ＳＷ１，ＳＷ２，Ｓ
Ｗ１５，ＳＷ２１〜ＳＷ２３……電子スイツチ。

Claims (1)

  1. 【実用新案登録請求の範囲】 反転入力が出力端と接続されて帰還回路を構成
    する少なくとも２つの差動増幅回路を備え、 １つの前記差動増幅回路の非反転入力は入力端
    が接続され、他方の前記差動増幅回路の非反転入
    力は減衰用の抵抗を介して前記入力端が接続され
    るとともに、 前記差動増幅回路にはそれぞれ、前記差動増幅
    回路の能動状態／非能動状態への設定制御を行う
    ための電子スイツチ、 を備えて成ることを特徴とする電子アツテネータ
    回路。
JP11342189U 1989-09-29 1989-09-29 電子アッテネータ回路 Expired - Lifetime JPH0628824Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11342189U JPH0628824Y2 (ja) 1989-09-29 1989-09-29 電子アッテネータ回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11342189U JPH0628824Y2 (ja) 1989-09-29 1989-09-29 電子アッテネータ回路

Publications (2)

Publication Number Publication Date
JPH0353023U true JPH0353023U (ja) 1991-05-22
JPH0628824Y2 JPH0628824Y2 (ja) 1994-08-03

Family

ID=31661837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11342189U Expired - Lifetime JPH0628824Y2 (ja) 1989-09-29 1989-09-29 電子アッテネータ回路

Country Status (1)

Country Link
JP (1) JPH0628824Y2 (ja)

Also Published As

Publication number Publication date
JPH0628824Y2 (ja) 1994-08-03

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