The circuit diagram above represents a basic overview of a typical three phase motor drive topology.  By far, the majority of these drives push three phase motors (note the three phase legs in the diagram). Three phase motors are more efficient, cheaper and lighter in weight and are therefore much more desirable. For the white goods market the input voltage will be single phase but the drive will still invert to a variable three phase output. As with the solar inverters, the free wheeling diodes in the inverter section is where the SiC Schottkys present benefit. The diodes in the rectifier section are switching at line frequency (50Hz or 60Hz). Their switching losses are negligible compared to their conduction losses, therefore SiC Schottkys are not feasible in this section.