Patent ID: 6236583
Filing Date: 2001-05-22
Classification: B60L,H02P,Y02T

Abstract:
A motor and an inverter which drives the motor, wherein the motor comprises:a stator comprising a first group of coils and a second group of coils, each group of coils generating a rotating magnetic field by supplying a three-phase alternating current to the coils of each group, a winding direction of the coils of the second group being opposite to a winding direction of the coils of the first group having an identical phase; anda rotor which rotates due to the rotating magnetic field generated by the first group of coils and the rotating magnetic field generated by the second group of coils; and wherein the inverter comprises:two switching circuits, each of the circuits comprising plural switching elements and supplying the three-phase alternating current to the coils of each group according to the switching action of the plural switching elements; anda control unit which controls the switching elements of the switching circuits corresponding to each group to cause the sum of terminal voltages of the coils of each group to be constant.