A common transformer used with an electric vehicle that includes a transformer core configured to receive electrical windings from a plurality of electrical circuits; an alternating current (AC) synchronous rectification (SR) circuit electrically connected to the transformer core via an AC winding; a high-voltage SR DC circuit electrically connected to the transformer core via a high-voltage DC winding; and a low-voltage DC SR circuit electrically connected to the transformer core via a low-voltage DC winding.