| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power conversion device that can boost and step-down a voltage not through a DC-DC converter. <P>SOLUTION: The power conversion device is connected to a plurality of DC power supplies (10a, 13), and drives an AC motor by generating a drive voltage of the AC motor by generating and composing pulses from output voltages of the DC power supplies. The power conversion device is also characterized by comprising a plurality of power converters (30a, 30c) that are connected to the plurality of power supplies. <P>COPYRIGHT: (C)2007,JPO&INPIT |
