Driving circuits, power devices and electronic devices including the same

摘要

A power device includes a switching device having a control terminal and an output terminal; and a driving circuit configured to provide a driving voltage to the control terminal such that a voltage between the control terminal and the output terminal remains less than or equal to a critical voltage. A rise time required for the driving voltage to reach a target level is determined according to current-voltage characteristics of the switching device. And, when the voltage between the control terminal and the output terminal exceeds the critical voltage, leakage current is generated between the control terminal and the output terminal.

主权项

1. 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.