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Characterization of a 62mm SiC Power Module with AgileSwitch Augmented Switching Gate Drivers

Switching a SiC MOSFET Power Module creates two significant problems that need to be addressed in order to optimize the performance of the device: turn-off voltage overshoot and ringing. These two parasitic problems need to be controlled while maintaining efficient switching.

Microchip’s AgileSwitch® line of patented Gate Drive products address these problems, controlling the turn-off di/dt by varying the gate voltage level and dwell time to one or more intermediate levels during turn-off. This process is typically referred to as Augmented Turn-Off™ or ATOff.

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