Well
A little set back, our inverter quit. It seems our driver circuit had been driven too hard overheated and failed. We think we have the culprit, It appears the higher voltages 390V to board level 15V is not being controlled tightly enough, so much for the boot-strap topology. We have the corrective components on the way. More conditioning and buffering for those little drivers. We are using the IGBTs similar to the Tesla Inverter drive. The IGBTs that I had used in the truck are the big brick type (expensive) were the TO247 case style are quite inexpensive <$20. It will be very nice to get everything stabilized and toward more robust.
Head meet wall. Persistence !!!!
We'll get there.
Randen
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