> Your N-channel MOSFETs are being forcibly and rapidly turned off
> by the ULN2003s but the P-channel MOSFETs are only being turned
> off by the 4K7 gate-to-source bleeder resistors, which cannot
> remove gate charge very fast.  

That's sounds OK, but I knew this so in PWM mode the P-FET is on all the
time, only the (opposite) lower N-FET is switched! And more bizarre: it
is not the P-FET that is on (conducting) that gets hot, it is the other
one, who is supposed to be off!

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
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