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.
Load control device, electric power steering apparatus, and method for controlling load control device
2015-11-11
Patent
Electronic Resource
English
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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