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Two Stage Ghurd Super Controller
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7
comments (7 topical, editorial)
Re: Two Stage Ghurd Super Controller
(
3.00 / 0
) (
#5
)
by Opera House on Wed Jul 16th, 2008 at 01:50:59 PM MST
(
User Info
)
It wouldn't hurt to put a few ohm resitor in the charge part of that cap. A greater concern than damaging the cap is damaging a FET. A really good large value cap would look like a dead short and stress a FET that was operating close to its limit. I have used this method with higher frequency PWM dump and it is an easy way to turn on the fan as resistors start to get toasty. In faster PWM circuits, use a fast recovery diode otherwise it will be conducting in both directions.
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Two Stage Ghurd Super Controller
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7
comments (7 topical, 0 editorial)
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