An LLC converter includes a plurality of resonant circuits that each include a plurality of capacitors connected to a DC input voltage, a switching circuit including a plurality of switches connected to the DC input voltage, a plurality of transformers each including a plurality of primary windings and a plurality of secondary windings, and a plurality of synchronous rectifiers each connected to one of the plurality of secondary windings. The plurality of primary windings of each of the plurality of transformers includes a first primary winding and a second primary winding. Series-connected first primary windings are connected to a first resonant circuit of the plurality of resonant circuits, and series-connected second primary windings are directly connected to a second resonant circuit of the plurality of resonant circuits. Currents from each of the plurality of secondary windings are equal or substantially equal.