JPH03127272U - - Google Patents

Info

Publication number
JPH03127272U
JPH03127272U JP3695390U JP3695390U JPH03127272U JP H03127272 U JPH03127272 U JP H03127272U JP 3695390 U JP3695390 U JP 3695390U JP 3695390 U JP3695390 U JP 3695390U JP H03127272 U JPH03127272 U JP H03127272U
Authority
JP
Japan
Prior art keywords
voltage
output
circuit
constant
switching
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
JP3695390U
Other languages
English (en)
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 JP3695390U priority Critical patent/JPH03127272U/ja
Publication of JPH03127272U publication Critical patent/JPH03127272U/ja
Pending legal-status Critical Current

Links

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  • Measurement Of Current Or Voltage (AREA)

Description

【図面の簡単な説明】
第１図はこの考案の実施例を示す接続図、第２
図は切替え回路１９の出力である方形波信号の波
形例を示す図、第３図は負電圧発生部１８の他の
例を示す図、第４図は従来の交流電圧測定器を示
す回路図である。

Claims (1)

  1. 【実用新案登録請求の範囲】 入力端子より印加される交流電圧を利得可調整
    の前置増幅器で増幅し、その増幅出力の実効値を
    実効値測定回路で測定する交流電圧測定器におい
    て、 正の直流定電圧を発生する正電圧発生部と、 その正の直流定電圧と絶対値がほぼ等しい負の
    直流定電圧を発生する負電圧発生部と、 上記正電圧発生部の出力と、上記負電圧発生部
    の出力とを切替えて出力する切替え回路と、 その切替え回路の切替えを一定周期で制御し、
    かつその切替え周期を変更することができる制御
    回路と、 上記切替え回路の出力側と上記入力端子とを切
    替えて上記前置増幅器の入力側に接続する切替え
    スイツチと、 を具備することを特徴とする交流電圧測定器。
JP3695390U 1990-04-04 1990-04-04 Pending JPH03127272U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3695390U JPH03127272U (ja) 1990-04-04 1990-04-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3695390U JPH03127272U (ja) 1990-04-04 1990-04-04

Publications (1)

Publication Number Publication Date
JPH03127272U true JPH03127272U (ja) 1991-12-20

Family

ID=31543640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3695390U Pending JPH03127272U (ja) 1990-04-04 1990-04-04

Country Status (1)

Country Link
JP (1) JPH03127272U (ja)

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