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MPaulHolmes · 10-19-2010, 11:49 PM

a resistor in series with the freewheel diode? That's making oprah slog through a swamp in order to get to the cookie...

I think the reason the resistor is reducing the spikes is that it is forcing the current to change slower. But if you use really really good layout, the stray inductance will be small anyway, so the spikes will be small.

P.S.: Do NOT encourage that woman to sing, if you know what I mean... 2012 will come early.

10-19-2010, 11:49 PM	#3866 (permalink)
MPaulHolmes PaulH Join Date: Feb 2008 Location: Maricopa, AZ (sort of. Actually outside of town) Posts: 3,832 Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000 Thanks: 1,368 Thanked 1,202 Times in 765 Posts	a resistor in series with the freewheel diode? That's making oprah slog through a swamp in order to get to the cookie... I think the reason the resistor is reducing the spikes is that it is forcing the current to change slower. But if you use really really good layout, the stray inductance will be small anyway, so the spikes will be small. P.S.: Do NOT encourage that woman to sing, if you know what I mean... 2012 will come early. __________________ kits and boards Last edited by MPaulHolmes; 10-20-2010 at 12:43 AM..