Patent ID: 8040183
Filing Date: 2011-10-18
Classification: H03F

Abstract:
1. An H-bridge power amplifier circuit, comprising: a first switch pair, the first switch pair including a first MOSFET switch and a first reverse-conduction blocking switch, the first MOSFET switch being connected to the first reverse-conduction blocking switch; a second switch pair, the second switch pair being connected to the first switch pair, the second switch pair including a second MOSFET switch and a second reverse-conduction blocking switch, the second MOSFET switch being connected to the second reverse-conduction blocking switch; a first diode, the first diode being connected in parallel with the first switch pair; a second diode, the second diode being connected in parallel with the second switch pair; a snubber inductor, the snubber inductor being connected to the first switch pair, the second switch pair, the first diode and the second diode; and a control branch, the control branch being connected to the first switch pair, the second switch pair and the snubber inductor, the control branch including a snubber capacitor and a control MOSFET switch, the snubber capacitor being connected to the control MOSFET switch.