Motor control system

Abstract

A motor control system for controlling operation of a plurality of motors. The motor control system is composed of a microcomputer for performing sequential control of the motors. A plurality of integrated circuits are provided to drive the motors, respectively, in response to signal output from the microcomputer. Each integrated circuit has two input terminals connected respectively to two output ports of the microcomputer and two output terminals connected respectively to one terminals of the motors. Additionally, a change-over circuit is provided to change over the rotational direction of the motors in response to signals from the microcomputer. The change-over circuit has two input terminals respectively connected to two output ports of the microcomputer and an output terminal connected to the other input terminals of the motors, thereby reducing the number of the integrated circuits necessary for this system while reducing the number of the microcomputer output ports as compared with in conventional motor control systems.

Dependencies are inferred from the claim text.