Hi Wouter and all.

Perhaps spikes and reverse voltage of diodes and transistors could be =

the problem. Thats if an strange voltage incoming o misconexion is not =

possible.

In my controls I dont use Schottky diodes at this application. Reverse =

voltage of semiconductors is always 4-6 times the supply. Also use an rc =

network at the output.

Best regards

Luis Izquierdo

Wouter van Ooijen escribi=F3:

>Next problem with my motor driver hardware :(
>
>(gif of relevant part attached)
>
>My customer confronted me with a unit in which at least one of the
>supression diodes (D7, 1N5819) was totally blown. I think both FETs and
>the other diode were also dead, but with less visible damage. After
>replacing the two diodes and the two FETs the unit seems to work OK
>again.
>  =

>


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