Patent ID: 7215040
Filing Date: 2007-05-08
Classification: H02M

Abstract:
1. An zero-voltage switching digital power converter characterized in that the converter comprises two switching components, each of the two switching components is connected to a power supply and is in parallel connection with a capacitance and in reverse parallel connection with a diode, respectively, said switching components, together with their auxiliary circuits, constitute respectively the up side and down side of a semi-bridge circuit which is connected to an output terminal of the converter via an inductance wherein the time intervals during which the status in which the two switching components are all turned off is changed to the status in which one of the two switching is turned on and the other is turned off is larger than or equal to the time intervals during which the capacitance connected in parallel to the switching component changing from turn-on to turn-off is charged by the current of the inductance and the capacitance connected in parallel to the switching component changing from turn-off to turn-on is discharged by the current of the inductance till the voltage across the capacitance reaches zero.