Patent ID: 6980450

Claim:
A switching inverter, comprising: a first primary winding connected in series to a first switch and a DC voltage source; a second primary winding connected in series to a second switch and the DC voltage source; wherein the first primary winding and the second primary winding include ribbon-like conductors each having a thickness RIBBONTHICKNESS; wherein a first coil segment of the first primary winding and a second coil segment of the second primary winding are wound coaxially around a transformer core; wherein the first primary winding and the second primary winding are approximately parallel separated by a dielectric layer, and the distance between the cross-sectional centroid of the first primary winding and the cross-sectional centroid of the second primary winding is not greater than 2×RIBBONTHICKNESS, and wherein each of the ribbon-like conductors has an aspect ratio of at least 100.