I am working on a multilevel inverter, I have designed a fault remedy algorithm, that works perfectly under short circuit condition ( experimentally verified).
Since in multilevel inverter energy level is not enough high to evaporate silicon surface, the possibility of this kind of open-circuit fault is very low. but because of numerious switches and connection there is still possibility of open-circuit fault because of missing firing signal. To avoid bypass switch, I'd like the switch be closed (switch ON) when its firing signal is missed. I'd like to have most economical way.
Thank you for your helps.
Sorry for first vague question