| 摘要 |
<P>PROBLEM TO BE SOLVED: To attain a tendency to miniaturize a reactor and a tendency to lighten its weight with reduction of heat/noise corrective action attained, by reducing the loss and the noise of the three-phase reactor in an AC side of a power converter, and to attain reduction of a cost and to attain improvement of conversion efficiency, by reducing specific frequency components. <P>SOLUTION: Although the carrier wave of a controller is constituted as conventionally with a single wave, but in the present invention, the carrier wave to the amount of a number of phases of the power is prepared, and a converter, further to set appropriately the phase difference of each carrier wave. <P>COPYRIGHT: (C)2007,JPO&INPIT |
