Quote:
Originally Posted by squiggles
That would be an interesting test. In theory it should not work as you are adding inductance, it would smooth off spikes but possibly induce ringing. Still there is nothing like a bit of live testing.
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It seems to suppress the ringing (med and high frequency) and snub the oscillation from longer lead inductance up to the resistors. Like I said, just a hunch. I have some longer traces from my opto drivers and I place the beads as close to the base of the inputs on my H-Bridge as I can get them. Without them I get ring and oscillation and messed up PWM signal.