| 摘要 |
<p>In the inverter device that receives DC power from the DC common bus 15 and drives a load, the configuration is such that the switching element SW1 is arranged on the first current path in which current flows through the positive-side DC terminal P during powering, the reverse-connected diode D1 is arranged on the second current path in which current flows through the positive-side DC terminal P1 during regeneration, the charging resistor R1 is arranged on the third current path in which current flows through the positive-side DC terminal P when the smoothing capacitor of the smoothing unit 13 is initially charged, and the brake resistor R2 is connected externally between the positive-side DC terminals P and P1 such that the positive-side DC terminal P becomes an end whose potential is the same as that of the positive-side bus 15a of the DC common bus 15.</p> |
