Original poster: "Gerry Reynolds" <gerryreynolds@xxxxxxxxxxxxx> Hi Terry,With the slow decay on the RC timing circuit, I'm wondering if some hysteresis would help control the OFF time. Quick charge and slow decay is begging for something on the trailing edge.
Gerry
Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>The not ground hit ringdown is longer than expected so the IGBTs may be burning excess power due to the 250uS turn off time possibly being too short.... More to study there...Cheers, Terry