MOTOR CONTROL SYSTEM FOR ENERGIZING A LOW-VOLTAGE MOTOR FROM A HIGH-VOLTAGE SOURCE

A motor control system includes a voltage source, a multi-phase motor, and a motor control circuit. The voltage source supplies a voltage at a maximum voltage magnitude. The multi-phase motor has a motor voltage rating that is less than the maximum voltage magnitude. The motor control circuit is coupled to the voltage source and to the multi-phase stator and is configured to energize each phase of the multi-phase stator with a voltage having a peak magnitude at or below the motor voltage rating voltage. The motor control circuit includes a multi-phase inverter, a multi-phase output filter circuit, and a duty-cycle control circuit. The duty-cycle control signal supplied by the duty-cycle control circuit and the multiphase output filter ensure that the peak magnitude of the voltage supplied to each phase of the multi-phase stator is at or below the motor voltage rating.