Patent ID: 7826235

Claim:
A zero-voltage switching high-frequency inverter comprising: a first switch and a second switch that are connected in series between power sources; a first capacitor, an impedance element, and an inductor element that are connected in series between a connecting path connecting the first switch and the second switch and one end of the power sources; and a second capacitor connected in parallel to the impedance element and the inductor element that are connected in series, wherein a node between the impedance element and the inductor element is not connected to any other element but for an interconnection between the impedance element and the inductor element, and wherein when a ratio of an amplitude of a current flowing through the impedance element (lomax) relative to an amplitude of a current flowing through the first switch and the second switch (lsmax) is Ar (lomax/Ismax), an electrostatic capacity of the first capacitor is CC 1 , and an electrostatic capacity of the second capacitor is CC 2 , the electrostatic capacity CC 1 of the first capacitor and the electrostatic capacity CC 2 of the second capacitor are set such that the expression Ar=1+CC 2 /CC 1 is satisfied.