Patent ID: 6344719
Filing Date: 2002-02-05
Classification: H02P

Abstract:
A motor driving apparatus comprising a plurality of motors for displacing a position of a control object member during rotation, a plurality of motor driving units having at least one semiconductor switch pair to selectively connect the motors to a power supply and a control unit for ON/OFF controlling the semiconductor switch pair of the motor driving units, wherein a set of motors is formed of two motors, one end of the two motors forming the set is connected to a common motor driving unit having one semiconductor switch pair and another end thereof is connected respectively to a motor driving unit having two semiconductor switch pairs and the control unit drives, when the two motors forming the set are driven simultaneously, the two motors on a time division basis by ON/OFF controlling the two semiconductor switch pairs to provide inverse output voltage polarities of the two semiconductor switch pairs of the motor driving unit connected to the two motors.