JPH0167827U - - Google Patents

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Publication number
JPH0167827U
JPH0167827U JP1987161315U JP16131587U JPH0167827U JP H0167827 U JPH0167827 U JP H0167827U JP 1987161315 U JP1987161315 U JP 1987161315U JP 16131587 U JP16131587 U JP 16131587U JP H0167827 U JPH0167827 U JP H0167827U
Authority
JP
Japan
Prior art keywords
photocoupler
resistor
potential
emitter
collector
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
JP1987161315U
Other languages
English (en)
Other versions
JPH0522991Y2 (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 JP16131587U priority Critical patent/JPH0522991Y2/ja
Publication of JPH0167827U publication Critical patent/JPH0167827U/ja
Application granted granted Critical
Publication of JPH0522991Y2 publication Critical patent/JPH0522991Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【図面の簡単な説明】
第１図は本考案のフオトカプラを使用した入力
回路の一実施例を示す回路図、第２図は従来例の
回路図、第３図はフオトカプラ５，６の回路図で
ある。 １〜４……スイツチ、５〜６……フオトカプラ
、１５〜１９……抵抗、２０……バツフア。

Claims (1)

    【実用新案登録請求の範囲】
  1. フオトカプラと、フオトカプラの各コレクタに
    接続されたプルアツプ用の第１の抵抗と、一端が
    接地され、他端がフオトカプラの各エミツタに共
    通に接続された第２の抵抗と、フオトカプラのエ
    ミツタの電位を制御する制御回路とを含み、第１
    、第２の抵抗の抵抗値および第１の抵抗に接続さ
    れた電源の電圧は、エミツタの電位が０でなくフ
    オトカプラがオンしたときコレクタの電位が高電
    位となるように設定されている、フオトカプラを
    使用した入力回路。
JP16131587U 1987-10-23 1987-10-23 Expired - Lifetime JPH0522991Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16131587U JPH0522991Y2 (ja) 1987-10-23 1987-10-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16131587U JPH0522991Y2 (ja) 1987-10-23 1987-10-23

Publications (2)

Publication Number Publication Date
JPH0167827U true JPH0167827U (ja) 1989-05-01
JPH0522991Y2 JPH0522991Y2 (ja) 1993-06-14

Family

ID=31444138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16131587U Expired - Lifetime JPH0522991Y2 (ja) 1987-10-23 1987-10-23

Country Status (1)

Country Link
JP (1) JPH0522991Y2 (ja)

Also Published As

Publication number Publication date
JPH0522991Y2 (ja) 1993-06-14

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