Hello,
I am trying to design a packed e-cell inverter topology (something similar to this). The issue is that I am accustomed to designing bipolar bias supplies for isolated gate drivers, which power conventional 3-phase full bridge inverters using either isolated DC-DC modules or transformers...
After boosting the 3.3V 20khz pulse wave to 15V using a push-pull stage IGBT gate terminal input. And 24V power is IGBT's collector And I want to use the bootstrap. But it seems that the operation of this circuit is not normal. What is the problem and how can I fix it?