Switching frequency related trade off's in a hard switching CCM PFC boost convert

The combination of silicon carbide Schottky diodes (thinQ!/sup /spl trade//) and power MOSFET CoolMOS/sup /spl trade// C3 sets a new efficiency benchmark in hard switching circuits like CCM PFC. Much higher switching frequencies become feasible. Trade off between switching frequency, size of the system and power losses in all components will be discussed.