Patent ID: 9490711
Filing Date: 2016-11-08
CPC Classification: H02M,H03K

Claim Text:
1. A gate drive power supply system comprising: a voltage boost stage configured to boost an input voltage into a boost voltage; an inverter stage configured to invert the boost voltage into an AC voltage; a plurality of gate drive voltage supply circuits transformer coupled to the inverter stage to receive an AC output based on the AC voltage and configured to convert the AC output into DC supply voltages for gate drives; a gate driver controller configured to control operation of the inverter stage in inverting the boost voltage into the AC voltage; a gate driver controller voltage supply circuit transformer coupled to the inverter stage to receive another AC output based on the AC voltage and configured to convert the other AC output into a DC supply voltage for the gate driver controller; and a kick starter circuit configured to supply the gate driver controller with energy while the DC supply voltage from the gate driver controller voltage supply circuit is insufficient for powering the gate driver controller.