Patent ID: 8665623
Filing Date: 2014-03-04
Classification: H02M,H05K

Abstract:
1. A power converter comprising: a plurality of semiconductor modules each of which includes a main unit, control terminals, and power terminals, the main unit having a semiconductor device disposed therein, the control and power terminals protruding from the main unit, wherein the control terminals protrude in a thickness-wise direction from a control circuit board; a cooling device which works to cool the semiconductor modules; a smoothing capacitor which works to smooth a dc voltage applied to the semiconductor modules; a discharging resistor mounted on the control circuit board in parallel connection to the smoothing capacitor; a timing controller disposed on the control circuit board, the timing controller working to control timings of on/off operations of the semiconductor modules; a driver coupled to the control terminals of the semiconductor modules to control voltage applied to the control terminals; and a power supply circuit disposed on the control circuit board, the power supply circuit working to transform a voltage input to the control circuit board into operating voltages for the timing controller and the driver, wherein the driver is disposed between at least one of the timing controller and the power supply circuit and the discharging resistor.