| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor drive in which loss between a drive power supply and a controller can be reduced.SOLUTION: A motor drive 6 includes a plurality of motors 4, a single drive power supply 7 for driving these motors 4, and a controller 8 for controlling the electrification time to the motor coils of the plurality of motors 4 by PWM drive system. The controller 8 has phase shift means 10a for differentiating the phase of a PWM signal, for feeding a current to the motor 4, for respective motors. So-called overlap of the electrification time of current is avoided, by differentiating the phase of the PWM signal, for feeding a current to the motor 4, for respective motors. |
