POWER APPARATUS, MOTOR DRIVING APPARATUS THEREIN

摘要

A power device comprises: a first motor; a second motor which is connected to the first motor in parallel; a driving unit which supplies drive current to the first motor and the second motor; and a control unit which controls the driving unit on the basis of the drive current and a rotation speed of the first motor, wherein the control unit controls the driving unit so that the rotation speed of the first motor can be the same as the rotation speed of the second motor when the rotation speed of the first motor is different from the rotation speed of the second motor. The driving unit applies drive voltage on the basis of the rotation speed and drive current of any one from two or more motors by using a single driving device to drive the motors at the same speed.