To provide a control device for an electric power steering device capable of performing high-speed, non-typologic and complicated calculation which is required for controlling a brushless motor for generating the steering assisting force. 操舵補助力発生用ブラシレスモータの制御に必要な高速で類型的でない複雑な演算を低コストで行う制御装置を提供する。 - 特許庁