ELECTRIC POWER STEERING APPARATUS AND CONTROL DEVICE INTEGRATED TYPE ELECTRIC MOTOR

摘要

There are provided a highly reliable, small size, high output, and low cost electric power steering apparatus and control device integrated motor. The apparatus comprises an electric motor drive circuit including a plurality of semiconductor power elements and controlling electric power supplied to the armature winding wire of an electric motor, a switching device for opening and closing a connection between an input terminal of the electric motor drive circuit and an external power supply, and another switching device for opening and closing the armature winding wire. At least one of both of the switching devices is configured with a semiconductor switching element, and the power elements and the semiconductor switching element are mounted on a substrate attached to a metal case.