CONTROL UNIT AND ELECTRIC POWER STEERING DEVICE USING SAME

摘要

A control unit capable of achieving effective utilization of the area of a control substrate and simplification and uniformity of the shape of a conductive plate is obtained. A frame has upper and lower surfaces extending in directions perpendicular to a motor output shaft, and on each of the surfaces, a toroidal-shaped conductive plate is mounted. The conductive plates each have a connection terminal portion on an inner circumferential side and an outer circumferential side thereof. An inverter circuit is formed of a power module comprising a plurality of switching elements. On one side of a package forming the power module, a power supply terminal is provided, and on an opposite side, an output terminal connected to a winding terminal for supplying power to a motor and a control terminal connected to a control signal are provided. The terminal portion on the inner circumferential side of the conductive plate is connected with the power supply terminal of the power module, and the control substrate is connected with the control terminal of the power module.