| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor-driving device for effectively inhibiting noise that is generated by an active filter for improving a power factor with a simple and low-cost configuration. SOLUTION: This motor-driving device is configured so that an AC current being given from an AC power supply 1 is supplied to an inverter 17 via an active filter 13 for improving a power factor, and a drive current for driving a motor 21 is generated by the inverter 17. Also, an inductance element 31 is provided at power feed lines 23 and 25 between a capacitor 15 and an active filter 33 that are connected between the positive and negative power feed lines 23 and 25 for connecting the active filter 13 and the inverter 17. In an inductance element 31, positive and negative electric wires are subjected to bifiler winding in a toroidal coil shape at a ring-shaped magnetic body core 31. |
