TIDUF68 February 2024
The following figures outline the SW transient voltage at hard-switching and soft-switching. PWM frequency (40kHz), LMG2100 propagation delay, as well as the 16.6ns PWM dead band can be well identified. Due to the low phase current there is hard-switching and a combination of soft- and hard-switching as shown in below figures. The turn-on and turn-off slew rate (20% to 80%) of the GaN-FETs was configured to around 10V/ns to 15V/ns.