This reference design provides a design template for implementing a three-level, three-phase, gallium nitride (GaN) based ANPC inverter power stage. The use of fast switching power devices makes it possible to switch at a higher frequency of 100 kHz, reducing the size of magnetics for the filter and increasing the power density of the power stage. The multilevel topology allows the use of 600-V rated power devices at higher DC-bus voltages of up to 1000 V. The lower-switching voltage stress reduces switching losses resulting in a peak efficiency of 98.5%.
Features
- Power stage for three-phase inverters and PFCs
- 600-V rated switches in 800-V system (due to three levels)
- Novel onboard protection implemented using CLB of C2000
- Iso-quad channel driver supports high-frequency operation (100 kHz)
- Shunt-based current sense (high accuracy and linearity over temperature)