JPH01162798U - - Google Patents

Info

Publication number
JPH01162798U
JPH01162798U JP1988058708U JP5870888U JPH01162798U JP H01162798 U JPH01162798 U JP H01162798U JP 1988058708 U JP1988058708 U JP 1988058708U JP 5870888 U JP5870888 U JP 5870888U JP H01162798 U JPH01162798 U JP H01162798U
Authority
JP
Japan
Prior art keywords
connect
operational amplifier
range hood
motor
rectifier
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
JP1988058708U
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 JP1988058708U priority Critical patent/JPH01162798U/ja
Publication of JPH01162798U publication Critical patent/JPH01162798U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Ventilation (AREA)
  • Control Of Ac Motors In General (AREA)

Description

【図面の簡単な説明】
図面は本考案の実施例を示し、第１図は整流器
をモータのメインコイルに直列に接続した形態を
示す回路図、第２図は整流器をＡＣ電源に直列に
接続した形態を示す回路図である。 図中、１：モータ、１ａ：メインコイル、Ｄ２
：整流器、ＶＲ１，ＶＲ２：可変抵抗器、ＯＰ１
：演算増幅器、２：定電圧回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. レンジフードのフアン駆動用モータにおけるメ
    インコイル又は交流電源に整流器を直列に接続し
    、その整流器の直流側に演算増幅器を接続すると
    共に、その演算増幅器の入力端子に出力電圧を変
    化させる可変抵抗器を接続し、且つ演算増幅器の
    出力電圧を増幅するトランジスタを接続し、該ト
    ランジスタの導通量を変化させることによりモー
    タの電流を制御し、回転数を無段階に可変するこ
    とを特徴とするレンジフードにおけるモータの無
    段階速度制御装置。
JP1988058708U 1988-04-28 1988-04-28 Pending JPH01162798U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988058708U JPH01162798U (ja) 1988-04-28 1988-04-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988058708U JPH01162798U (ja) 1988-04-28 1988-04-28

Publications (1)

Publication Number Publication Date
JPH01162798U true JPH01162798U (ja) 1989-11-13

Family

ID=31284507

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988058708U Pending JPH01162798U (ja) 1988-04-28 1988-04-28

Country Status (1)

Country Link
JP (1) JPH01162798U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49113121A (ja) * 1973-03-02 1974-10-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49113121A (ja) * 1973-03-02 1974-10-29

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