Patent ID: 7551004

Claim:
An inverter apparatus, comprising: a first power MOSFET having a source/drain connected to an output terminal; a second power MOSFET having a source/drain connected to said output terminal; a first gate drive circuit driving a gate of said first power MOSFET; and a second gate drive circuit driving a gate of said second power MOSFET; wherein, said first gate drive circuit includes, a first discharging path connected with said gate of said first power MOSFET, said first discharging path including a set of first serially-connected diodes which are forward-connected in a direction of a first discharge current from said gate of said first power MOSFET, said second gate drive circuit includes, a second discharging path connected with said gate of said second power MOSFET, said second discharging path comprising a set of second serially-connected diodes which are forward-connected in a direction of a second discharge current from said gate of said second power MOSFET, and during pull-down of said gate of said first power MOSFET followed by pull-up of said gate of said second power MOSFET, said first gate drive circuit drives said gate of said first power MOSFET so that when said second gate drive circuit drives a gate-source voltage of said second power MOSFET to a threshold voltage of said second power MOSFET, a gate-source voltage of said first power MOSFET is always higher than 0V and lower than a threshold voltage of said first power MOSFET.