Does EPC plan to offer a development board for evaluation of GaN transistors in Class D Amplifiers?
EPC development boards are designed to help simplify the evaluation process of EPC’s eGaN power transistors. The list of available development boards and supporting documentation is growing and can be found Tools and Design Support/ DemoBoards page The EPC9001 development board can be used to create Class D audio designs by connecting the development board to your class D design as you would any buck converter as shown in the quick start guide. As the minimum dead-time in class D is critical to limit cross-over distortion, this can be adjusted by changing R5 and R6 for rising and falling edges accordingly. The current values have been chosen to avoid shoot-through given part-to-part variation of all other board components and may not be optimum for a given board. Please take care during this adjustment to avoid shoot-through. We suggest adjusting these resistors only while running VDD and PWM alone with no bus voltage and measuring both gate signals simultaneously to determine the dead
