MOTOR DRIVE CIRCUIT, MOTOR DRIVE SYSTEM, ELECTRICALLY-DRIVEN POWER STEERING SYSTEM, ELECTRICALLY-DRIVEN BRAKE SYSTEM, AND VEHICLE DRIVE SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a motor drive circuit capable of separating a part corresponding to a faulty phase while achieving miniaturization and low cost.SOLUTION: A motor drive circuit comprises: a pre-driver for driving each phase of a multi-phase motor; and an electric circuit for providing a circuit function corresponding to an operation mode by switching connection relation between inner electric components according to a designated operation mode.