Abstract: A power converter includes a first bridge arm connected between an input power supply and a reference potential, the first bridge arm including a first switch and a second switch connected at a first connection point, a second bridge arm connected in parallel with the first bridge arm between the input power supply and the reference potential, the second bridge arm including a first capacitor and a second capacitor connected at a second connection point, a coupling inductance connected between the first and second connection points, where a center tap of the coupling inductance is connected to a load, and a first resonant inductor connected in series with the coupling inductance between the first and second connection points, the first resonant inductor defining a series resonant circuit with each of the first capacitor and the second capacitor.

Abstract: A power converter includes a first bridge arm and a second bridge arm connected in parallel between a voltage input terminal and a voltage output terminal, a first winding and an inductor connected in series between first and second nodes, a second winding and a third winding connected in series, a third switch connected between the second winding and a ground, and a fourth switch connected between the third winding and the ground. The first bridge arm includes first and second switches connected in series. The second bridge arm includes first and second capacitors connected in series. The first node is on a path connecting the first switch and the second switch, and the second node is on a path connecting the first capacitor and the second capacitor. The first to third windings define a transformer.

Abstract: Provided are a transformer and a method for manufacturing a transformer. The transformer includes a magnetic core including: a top substrate and a bottom substrate arranged opposite to each other, and a plurality of winding posts located therebetween; and a winding including a primary side winding wrapped around the plurality of winding posts and a secondary side winding. The primary side winding includes two sub-windings connected in parallel, each including: a main turn including respective at least one turn wrapped on at least two winding posts, respectively, and the at least two winding posts have a single magnetic flux direction; and an additional turn including at least one turn wrapped on at least one additional winding post on which a corresponding main turn of the other sub-winding wraps, and the additional turn has a magnetic flux direction opposite to the single magnetic flux direction.