postsol wrote:I've tried with xsim control software with firmware from ale take my engine 1 and turn and run back and forth between 0 and 255 and about 1 sec later there comes a loud pop from the h-bridge and it is dead.
I switched back to Thanos firmware started x-sim and a game and at the moment I pressed start on the x-sim. race motor back and forth and a new h-bridge was dead.
unfortunately I have not record a video of what happened and do not want to sacrifice a h-bridge again.
postsol
It's very familiar to me. However I play with Arduino + dsmhb 1.2 h-bridge (diy one, designed by Thanos). For first time I "sacrificed" also an ebay h-bridge. Then I decided to build dsmhb 1.2 , not to throw away again an other h-bridge (only the mosfets

). Well, well. I think I've already consumed the 2nd set of mosfets. The local store here has already a shortage, due to me.

Today one of the mosfets had some fire also. Now, I'm at that I take from it some distance at every test.
I'm lucky, because last week I could see to move my seat. So I know it works, I had it already. Just something else comes always. We say here some "stray current" .
I cannot help you with AMC1.6 . But, some general hints which would helped already to me: isolate everything. I've isolated even the pots, the motor, the actuator rods from each other and also from the frame. Take care of the pots. Today before I started x-sim, everything was ok with my h-bridge: it was turning my motors with a custom arduino code. But after starting x-sim I've noticed, that one of my pots was weird. I did not pay much attention on that, and when I pushed "Start" the motor was just turning for and backward very fast and very small and within some seconds the fire was there.
And one more: I made a proper cooling for the h-bridge also, with heat sinks and cooler.