| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress a voltage surge generated at a converter of a drive circuit for driving a motor. <P>SOLUTION: A controller 1 controls an on-period of an IGBT 103 to be long, based on a current value passing through a reactor 102, a boost value of a converter 10, a torque of a motor 109 or 110 and a control mode of an inverter 108, thereby suppressing a voltage surge generated at a system voltage VH. <P>COPYRIGHT: (C)2013,JPO&INPIT |
