Patent ID: 8970263
Filing Date: 2015-03-03
Classification: H03K

Abstract:
1. A semiconductor device driving unit to supply a drive signal to a gate of a semiconductor switching device, the semiconductor device driving unit comprising: a plurality of gate impedance circuits selectably connectable to the gate of the semiconductor switching device, each gate impedance circuit including at least one resistor and at least one capacitor; a selector to select one or more of the gate impedance circuits to connect to the semiconductor switching device; and a microprocessor to control the selection of the one or more gate impedance circuits, the microprocessor having stored procedures to determine the selection of the one or more gate impedance circuits during set up, wherein the procedures to determine the selection of the one or more gate impedance circuits relate to one or more intended operating conditions entered by a user during set up, and wherein the microprocessor is configured to connect the one or more selected gate impedance circuits to the semiconductor switching device prior to switching of the semiconductor switching device.