| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter device wherein electric charges stored in a reflux diode can be sufficiently reduced and a reverse recovery current passed when the other switching element is turned on can be sufficiently suppressed. <P>SOLUTION: While MOSFET 3u is still on, a reverse voltage application circuit 5u is actuated and a low reverse voltage Vd is applied to the reflux diode Du- of the MOSFET 3u. Thus, a reverse recovery current starts to flow. Thus, electric charges stored in the reflux diode Du- of the MOSFET 3u can be sufficiently reduced before the dead time ends. <P>COPYRIGHT: (C)2007,JPO&INPIT |
