JPS63122894U - - Google Patents

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Publication number
JPS63122894U
JPS63122894U JP1987014825U JP1482587U JPS63122894U JP S63122894 U JPS63122894 U JP S63122894U JP 1987014825 U JP1987014825 U JP 1987014825U JP 1482587 U JP1482587 U JP 1482587U JP S63122894 U JPS63122894 U JP S63122894U
Authority
JP
Japan
Prior art keywords
transistor
relay
series
transmitter
light emitting
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
JP1987014825U
Other languages
English (en)
Other versions
JPH0537358Y2 (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 JP1987014825U priority Critical patent/JPH0537358Y2/ja
Publication of JPS63122894U publication Critical patent/JPS63122894U/ja
Application granted granted Critical
Publication of JPH0537358Y2 publication Critical patent/JPH0537358Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Fire Alarms (AREA)

Description

【図面の簡単な説明】
第１図はこの考案の発信機回路の原理図、第２
図はその具体的な回路図、第３図は従来の発信機
回路を備えた火災報知機の回路図、第４図および
第５図は説明用の回路図である。 Ｍ……継電器、ＭＢ……発信機、ＰＢ……押し
ボタンスイツチ、Ｒ１……電流制限抵抗、ＬＥＤ
……発光ダイオード、Ｓ……スイツチング回路、
ＤＢ……ダイオード。

Claims (1)

    【実用新案登録請求の範囲】
  1. 発信機の動作を検出する継電器と直列に、発信
    機の押しボタンスイツチと電流制限抵抗と発光ダ
    イオードと逆接続防止用のダイオードとを接続し
    、上記電流制限抵抗と発光ダイオードとの直列回
    路に並列に、上記継電器と押しボタンスイツチと
    が直列に接続された状態でオンし上記継電器に感
    動電流値以上の所定電流を流す第１のトランジス
    タと、押しボタンスイツチが電源電圧に直接接続
    されたときオンし第１のトランジスタをオフさせ
    る第２のトランジスタとで構成されるスイツチン
    グ回路を設けるようにしたことを特徴とする火災
    報知機の発信機回路。
JP1987014825U 1987-02-05 1987-02-05 Expired - Lifetime JPH0537358Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987014825U JPH0537358Y2 (ja) 1987-02-05 1987-02-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987014825U JPH0537358Y2 (ja) 1987-02-05 1987-02-05

Publications (2)

Publication Number Publication Date
JPS63122894U true JPS63122894U (ja) 1988-08-10
JPH0537358Y2 JPH0537358Y2 (ja) 1993-09-21

Family

ID=30805179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987014825U Expired - Lifetime JPH0537358Y2 (ja) 1987-02-05 1987-02-05

Country Status (1)

Country Link
JP (1) JPH0537358Y2 (ja)

Also Published As

Publication number Publication date
JPH0537358Y2 (ja) 1993-09-21

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