The drive to increase switch mode power supply efficiency in a wide variety of applications is never ending. The move to electric drive by the automotive industry has recently driven growth in SiC use as well as in design engineer attention toward the benefits of the technology in wider application areas.

This paper will focus on server switch mode power supplies technologies, and how silicon carbide MOSFETs and Schottky diodes can improve efficiency, reduce system size/weight, and reduce overall system complexity and costs when used in new bridgeless totem pole PFC Topologies.