JPS61169494U - - Google Patents

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Publication number
JPS61169494U
JPS61169494U JP5142185U JP5142185U JPS61169494U JP S61169494 U JPS61169494 U JP S61169494U JP 5142185 U JP5142185 U JP 5142185U JP 5142185 U JP5142185 U JP 5142185U JP S61169494 U JPS61169494 U JP S61169494U
Authority
JP
Japan
Prior art keywords
signal
rotation speed
induction motor
output
error amplifier
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
JP5142185U
Other languages
Japanese (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 JP5142185U priority Critical patent/JPS61169494U/ja
Publication of JPS61169494U publication Critical patent/JPS61169494U/ja
Pending legal-status Critical Current

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  • Control Of Ac Motors In General (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図本本考案の実施例を示す回路図、第２図
は従来の構成を示す回路図、第３図は誘導電動機
の特性を示す回路図である。 ９……増幅器、１０……可変抵抗器。 FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing a conventional configuration, and FIG. 3 is a circuit diagram showing characteristics of an induction motor. 9...Amplifier, 10...Variable resistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転数設定器からの出力信号と被制御誘導電動
機の回転数検出器の符号反転信号とを加算のうえ
誤差増幅器を介して得られる信号に対し、上記回
転数検出器からの信号を加算のうえインバータを
動作し、このインバータにより上記被制御誘導電
動機を駆動する回路構成において、上記誤差増幅
器への入力信号を受けてマイナス極性の入力のみ
増幅し、プラス極性の入力に対しては出力を供給
しない増幅器を備え、この増幅器の出力を可変抵
抗器を介して上記誤差増幅器の出力に対し反対極
性の信号を加算するようにした誘導電動機の回転
数制御回路。 Add the output signal from the rotation speed setting device and the sign-inverted signal of the rotation speed detector of the controlled induction motor, and then add the signal from the rotation speed detector to the signal obtained via the error amplifier. In a circuit configuration that operates an inverter and drives the controlled induction motor using the inverter, it receives an input signal to the error amplifier and amplifies only the negative polarity input, and does not supply an output to the positive polarity input. A rotation speed control circuit for an induction motor, comprising an amplifier, and adding a signal of opposite polarity to the output of the error amplifier via a variable resistor.
JP5142185U 1985-04-05 1985-04-05 Pending JPS61169494U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5142185U JPS61169494U (en) 1985-04-05 1985-04-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5142185U JPS61169494U (en) 1985-04-05 1985-04-05

Publications (1)

Publication Number Publication Date
JPS61169494U true JPS61169494U (en) 1986-10-21

Family

ID=30570453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5142185U Pending JPS61169494U (en) 1985-04-05 1985-04-05

Country Status (1)

Country Link
JP (1) JPS61169494U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534878A (en) * 1978-09-04 1980-03-11 Mitsubishi Electric Corp Device for controlling speed of motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534878A (en) * 1978-09-04 1980-03-11 Mitsubishi Electric Corp Device for controlling speed of motor

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