摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter system which remarkably suppresses common mode noise, and moreover stabilizes a DC voltage at the input side of a bridge circuit. <P>SOLUTION: The inverter system including the bridge circuit and interconnected to a power system has a plurality of switching elements driven on/off by a PWM control signal, and inputs a DC voltage generated in dc power supply and converts to an ac voltage to output. The system is constituted so that a power supply unit to supply power to external equipment may be connected to two lines at the input side of the bridge circuit. <P>COPYRIGHT: (C)2008,JPO&INPIT |