Patent ID: 8803565

Claim:
A power device comprising: a switching device having a control terminal and an output terminal, the control terminal being configured to receive a driving voltage and the output terminal being configured to output an output voltage, each of the driving voltage and the output voltage increasing with respect to time during a first time interval; and a driving circuit configured to apply the driving voltage to the control terminal, the driving circuit being further configured to control a rise time of the driving voltage applied to the control terminal such that a voltage difference between the driving voltage at the control terminal and the output voltage at the output terminal remains less than or equal to a critical voltage while the driving voltage and the output voltage increase with respect to time, the critical voltage being a minimum voltage level at which leakage current is generated between the control terminal and the output terminal; wherein the driving circuit is configured to control the rise time of the driving voltage applied to the control terminal without feedback of the output voltage from the output terminal.