JPH0365967U - - Google Patents

Info

Publication number
JPH0365967U
JPH0365967U JP12730389U JP12730389U JPH0365967U JP H0365967 U JPH0365967 U JP H0365967U JP 12730389 U JP12730389 U JP 12730389U JP 12730389 U JP12730389 U JP 12730389U JP H0365967 U JPH0365967 U JP H0365967U
Authority
JP
Japan
Prior art keywords
fan
conversion circuit
voltage conversion
rotation
pulse signal
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
JP12730389U
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 JP12730389U priority Critical patent/JPH0365967U/ja
Publication of JPH0365967U publication Critical patent/JPH0365967U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】
第1図は本考案のフアン回転検出回路を表わす
回路図、第2図はフアンが正常動作している際の
本考案回路の動作を表わすタイムチヤート、第3
図はフアンが停止した際の本考案回路の動作を表
わすタイムチヤート、第4図は従来のフアン回転
検出回路の表わす回路図、第5図はフアンからの
パルス信号である。 1……電圧変換器、2……シリアル・パラレル
変換器、3……クロツク発生器、Tr1……トラ
ンジスタ、G1……ゲート、F1,F2……ワン
シヨツト回路、Vr……定電圧発生器、OP1…
…オペアンプ、S1……電源。

Claims (1)

    【実用新案登録請求の範囲】
  1. フアンに設置される回転検出器からの回転を表
    わすパルス信号を入力してその電圧の大きさを変
    換する電圧変換回路と、この電圧変換回路で変換
    されたパルス信号を入力してフアン回転データま
    たはフアン停止データを出力するシリアル・パラ
    レル変換器とからなるフアン回転検出回路。
JP12730389U 1989-10-31 1989-10-31 Pending JPH0365967U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12730389U JPH0365967U (ja) 1989-10-31 1989-10-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12730389U JPH0365967U (ja) 1989-10-31 1989-10-31

Publications (1)

Publication Number Publication Date
JPH0365967U true JPH0365967U (ja) 1991-06-26

Family

ID=31675063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12730389U Pending JPH0365967U (ja) 1989-10-31 1989-10-31

Country Status (1)

Country Link
JP (1) JPH0365967U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56110054A (en) * 1980-02-05 1981-09-01 Toshiba Corp Detecting device for speed of rotary machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56110054A (en) * 1980-02-05 1981-09-01 Toshiba Corp Detecting device for speed of rotary machine

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