CRD-22AD12N Reference Designs

This reference design demonstrates the application of Wolfspeed’s 1200V C3M™ SiC MOSFETs to create a 22kW three phase bidirectional active front end (AFE) converter for electric vehicle (EV) on-board charger (OBC), off-board fast charging, and other industrial applications such as energy storage systems and three phase PFC power supplies. This design operates as a standalone AC/DC converter and is compatible with both single-phase and three-phase inputs. It has two operating modes: power factor correction (PFC) mode and inverter mode. In both modes, the DC bus voltage is flexible to demonstrate operation under a range of conditions. The use of 1200V C3M™ 32mOhm SiC MOSFETs in a TO- 247-4 package provides the best figure of merit (FOM) and reduces switching loss and cross talk.