PROBLEM TO BE SOLVED: To provide a control circuit for motor-driven actuator which improves a noise resistance property even if an electronic circuit or the like constituting the control circuit is downsized correspondingly to a universal power source that is capable of being used with a plurality of kinds of AC power sources, the control circuit for motor-driven actuator being configured to open/close a valve by electrically controlling drive of a motor.SOLUTION: The present invention relates to a control circuit for motor-driven actuator configured to open/close a valve while being interlocked with drive of a motor by electrically controlling the drive of the motor. The control circuit comprises: a power supply circuit for converting an AC power source supplied from the outside into a DC power source; an input interface circuit for outputting as differential signals, a valve opening instruction signal instructing a valve opening operation and a valve closing instruction signal instructing a valve closing operation in response to a user signal inputted from the outside; and a motor drive signal generation part to which the DC power source is supplied and by which the differential signals are detected and a motor drive signal for driving the motor in a valve opening state or a valve closing state is outputted to the motor.SELECTED DRAWING: Figure 1

    【課題】モータの駆動を電気的に制御して弁の開閉を行う電動式アクチュエータ用制御回路において、複数種類の交流電源で使用可能なユニバーサル電源に対応し制御回路を構成する電子回路等を小型化しても耐雑音特性の優れた電動式アクチュエータ用制御回路を提供することを目的とする。【解決手段】モータの駆動を電気的に制御してモータの駆動に連動して弁の開閉を行う電動式アクチュエータ用の制御回路であって、該制御回路は、外部から供給された交流電源を直流電源に変換する電源回路と、外部から入力されたユーザ信号に応答して開弁動作を指示する開弁指示信号および閉弁動作を指示する閉弁指示信号を差動信号として出力する入力インターフェイス回路と、前記直流電源が供給され入力された前記差動信号を検出し前記モータを開弁あるいは閉弁のいずれかに駆動するモータ駆動信号を前記モータに出力するモータ駆動信号生成部とを備えたことを特徴とする。【選択図】 図1


    Access

    Download


    Export, share and cite



    Title :

    CONTROL CIRCUIT FOR MOTOR-DRIVEN ACTUATOR, AND MOTOR-DRIVEN ACTUATOR


    Additional title:

    電動式アクチュエータ用制御回路および電動式アクチュエータ


    Contributors:

    Publication date :

    2017-02-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR