In order to provide a motor driving circuit with which the portion corresponding to a malfunctioning phase can be separated while reducing the size and the cost, this motor driving circuit, which drives a motor, is equipped with: a second driver circuit, which drives a driver circuit that supplies to a multiphase motor of three or more phases the driving current corresponding to one phase of the multiphase motor; and an electrical circuit, which has multiple electrical components, and which switches the connection relationships between these electrical components in accordance with an operating mode specified from outside of the motor driving circuit, thereby providing the circuit function corresponding to the operating mode.
Motor driving circuit, motor driving system, electric power steering system, electric brake system, and vehicle driving system
2015-04-29
Patent
Electronic Resource
English
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B62D MOTOR VEHICLES , Motorfahrzeuge / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H03K PULSE TECHNIQUE , Impulstechnik |
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