Power Factor Corrector (PFC) totem pole

The continued rise in demand for higher power density and ever more efficient power conversion had driven the continued innovation in wide-bandgap (WBG) semiconductor technology. WBG diodes and transistors have enabled totem-pole bridgeless power factor correction to become the dominant solution for many applications, in particular energy storage systems (ESS), electric vehicle charging and uninterruptable power supplies (UPS). This topology can also offer bidirectional operation, enabling power to be transmitted to and from the grid without affecting efficiency.