| abstract |
The present invention relates to a drain pump driving apparatus and a laundry processing apparatus having the same. A drain pump driving apparatus and a laundry processing apparatus including the same according to an embodiment of the present invention include a motor for operating a drain pump and a switching power source for converting a DC power source to an AC power source, And a control unit for controlling the inverter. The control unit calculates the speed ripple of the motor based on the output current, and controls the motor speed ripple to the calculated motor speed ripple Based on this, the speed of the motor can be varied. As a result, it is possible to reduce noise during drainage. |