| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power conversion apparatus that suppresses the effect of switching noise and heat generated by switching elements on a transformer. <P>SOLUTION: A motor generator controller 1 includes IGBTs 100c, 101a-101c, and 110a-110c on the high potential side, IGBTs 100d, 101d-101f, and 110d-110f on the low potential side, and transformers 140 and 150. The IGBTs on the high potential side are mounted right and left in row form on a wiring board 1000. The IGBTs on the low potential side are mounted right and left in row form, while being arrayed in parallel in front of the IGBTs on the high potential side. A transformer is mounted behind the IGBTs on the high potential side. Accordingly, as compared with the conventional case that a transformer is mounted between IGBTs on the high potential side and IGBTs on the low potential side mounted in row form, it can suppress the effect of switching noise and heat generated by the IGBTs on the transformer. <P>COPYRIGHT: (C)2011,JPO&INPIT |
