This reference design illustrates a 250W high efficiency motor inverter without heat sink based on GaN IPM DRV7308, also demo a low standby power design with UCC28911. This reference design implements sensorless FOC motor control with 3-phase PMSM with FAST™ or eSMO observer. This reference design supports both the C2000™ MCU and MSPM0 microcontroller daughter-board on the same motherboard. The hardware, GUI software and firmware are available and ready-to-use to help to accelerate development time to market.