Patent ID: 9712044
Date: 2017-07-18
CPC Classifications: H02H,H02M,H02P

Claim:
1. A power converter including at least one bridge circuit configured to have upper and lower arms in which a first power semiconductor device and a second power semiconductor device are connected in series, the power converter comprising: a first gate driving circuit connected to a first control gate terminal and a first control source terminal in the first power semiconductor device, to supply a charge to the first power semiconductor device to drive the first power semiconductor device; and a second gate driving circuit connected to a second control gate terminal and a second control source terminal in the second power semiconductor device, to supply a charge to the second power semiconductor device to drive the second power semiconductor device, wherein a first main current source terminal of the first power semiconductor device is connected to a second main current drain terminal of the second power semiconductor device, and an end of the connection is connected to a load by an output line, and the first gate driving circuit monitors a first voltage developed by an output inductor between the connection end and the load, and performs control to protect the first power semiconductor device based on a value of the monitored voltage.