Disclosed are implementations that include a non-isolated power converter system comprising a filter including an inductor and a capacitor. The inductor of the filter includes a core portion and a winding portion. The core portion may include different shape core structures. The winding portion includes a winding embedded within a printed circuit board. The printed circuit board winding may include a litz wiring, and the printed circuit board having located thereon one or more of a controller or power switching elements.