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*This is the bit im not sure of*

Sorry about not being clear

Sorry about the problem you are having with your logic. The formula is Z=1/2*3.14159*F*C. Z = impeadance F = Frequency and C = capacitance. By using this formula we can find that increasing the value of C will lower the value of Z at a frequency of F, OR increasing the value of C will lower the frequency F for a give value of Z.

All this means is, Freddie is right. Using caps in parrallel to get a larger value or some special value works just fine.

Good luck

So the small cap start acting faster, then after a few nanoseconds, the bigger cap wake up and start working before the smaller cap is drained up.

That's more complicated in reality, but you can see it that way to make things more simple.

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