| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an operating method of an invertor compressor and a compressor driving device, capable of reducing leaked current. <P>SOLUTION: A charging operation of a boot capacitor 407 functioned as a motion power source of a high arm-side switch 401 disposed on an invertor 4 is executed every stop of motion of a motor M1. A liquid discharging operation executed prior to the ordinary operation, is executed by using carrier frequency lower than a value in an ordinary operation to reduce leaked current. In this invention, the carrier frequency is changed to a value of the ordinary operation to move into the ordinary operation without stopping the motion of the motor M1 when the liquid discharge operation achieves its target. Accordingly, the charging motion of the boot capacitor executed between the liquid discharging operation and the ordinary operation can be omitted, and the leaked current can be reduced. <P>COPYRIGHT: (C)2008,JPO&INPIT |
