A load control device is provided with a load control means for driving a load, a current sensing resistor, a differential amplifier, and a current calculation means. The load control means can perform switching between a standby state in which a state in which one of switching elements is turned on and the other of the switching elements is turned off and a state in which the one of the switching elements is turned off and the other of the switching elements is turned on are repeated, and a drive state in which both of the switching elements are turned on. The current calculation means calculates a current flowing through the current sensing resistor on the basis of a value outputted from the differential amplifier in the drive state and an offset value outputted from the differential amplifier in the standby state.


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    Title :

    Load control device, electric power steering apparatus, and method for controlling load control device


    Contributors:
    NAGAE KOUKI (author) / OWAKI JUNICHI (author)

    Publication date :

    2015-11-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B62D MOTOR VEHICLES , Motorfahrzeuge / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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