JPS588171U - Inspection circuit for analog voltage signal switching contact - Google Patents

Inspection circuit for analog voltage signal switching contact

Info

Publication number
JPS588171U
JPS588171U JP10253481U JP10253481U JPS588171U JP S588171 U JPS588171 U JP S588171U JP 10253481 U JP10253481 U JP 10253481U JP 10253481 U JP10253481 U JP 10253481U JP S588171 U JPS588171 U JP S588171U
Authority
JP
Japan
Prior art keywords
voltage signal
switching contact
analog voltage
value
voltage
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
JP10253481U
Other languages
Japanese (ja)
Inventor
望月　清
Original Assignee
株式会社山武
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 株式会社山武 filed Critical 株式会社山武
Priority to JP10253481U priority Critical patent/JPS588171U/en
Publication of JPS588171U publication Critical patent/JPS588171U/en
Pending legal-status Critical Current

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  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (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) [Abstract] 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]

一第１図は本考案の一実施例を示す点検回路である。 １・・・主装置、２・・・バックアップ装置、３・・・
点検回路、Ｓｌ・・・スイッチ。FIG. 1 shows an inspection circuit showing an embodiment of the present invention. 1... Main device, 2... Backup device, 3...
Inspection circuit, SL...switch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主装置に及び切換接点を介してバックアップ装置に与え
られる比較的小さな電流値のアナログ電圧信号を前記切
換接点を通して受ける第１の入力端子と、基準電圧が与
えられる第２の入力端子と、前記第１の入力端子にプル
アップ抵抗を介してバイアス電圧が与えられ、これら第
１および第２の入力端子の入力電圧の差に応じたモニタ
出力信号を送出する出力端子とを有する差動増幅器から
なり、前記プルアップ抵抗は前記主装置へ与こられるア
ナログ電圧信号の精度を落さないよう十分大きな抵抗値
を有するとともに、前記基準電圧値は、　　　　″前記
アナログ電圧信号の最大値と、前記バイアス電圧の電圧
値との中間の適当な値で与えられてなることを特徴とす
るアナログ電圧信号切換接点の点検回路。a first input terminal that receives an analog voltage signal with a relatively small current value applied to the main device and to the backup device via the switching contact through the switching contact; a second input terminal to which a reference voltage is applied; It consists of a differential amplifier having a bias voltage applied to one input terminal via a pull-up resistor, and an output terminal that sends out a monitor output signal according to the difference between the input voltages of these first and second input terminals. , the pull-up resistor has a sufficiently large resistance value so as not to reduce the accuracy of the analog voltage signal applied to the main device, and the reference voltage value is ``the maximum value of the analog voltage signal and the bias voltage. An inspection circuit for an analog voltage signal switching contact, characterized in that the voltage is given at a suitable value intermediate between the voltage value of .
JP10253481U 1981-07-10 1981-07-10 Inspection circuit for analog voltage signal switching contact Pending JPS588171U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10253481U JPS588171U (en) 1981-07-10 1981-07-10 Inspection circuit for analog voltage signal switching contact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10253481U JPS588171U (en) 1981-07-10 1981-07-10 Inspection circuit for analog voltage signal switching contact

Publications (1)

Publication Number Publication Date
JPS588171U true JPS588171U (en) 1983-01-19

Family

ID=29897178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10253481U Pending JPS588171U (en) 1981-07-10 1981-07-10 Inspection circuit for analog voltage signal switching contact

Country Status (1)

Country Link
JP (1) JPS588171U (en)

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