Patent ID: 8779710
Filing Date: 2014-07-15
Classification: H02M,H02P

Abstract:
1. An inverter device that receives DC power from a DC common bus and drives a load, comprising: a first positive-side DC terminal and a first negative-side DC terminal that receive DC power from the DC common bus; a second positive-side DC terminal that is different from the first positive-side DC terminal; a smoothing unit that stores DC power supplied from the first positive-side DC terminal and the first negative-side DC terminal; a DC/AC conversion unit that converts DC power supplied from the smoothing unit to AC power; and a current-path changing unit that includes an external resistor is connected between the first positive-side DC terminal and the second positive-side DC terminal such that the first positive-side DC terminal becomes an end whose potential is same as that of a positive-side bus of the DC common bus.