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Basic power filtering

Started by muddyfox, February 26, 2014, 09:26:21 AM

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muddyfox


OK to sum it up, first I put a 100R and a 1n5817 and then after that I put a 100uF and a 100nF in parallel to ground?

RobA

Quote from: muddyfox on February 27, 2014, 10:16:28 PM

OK to sum it up, first I put a 100R and a 1n5817 and then after that I put a 100uF and a 100nF in parallel to ground?
I think you need to be a bit careful with the value of the resistor you use. All of the current that the effect use will flow through that resistor. So, an effect that draws a lot of current will drop a lot of voltage over that resistor.

For effects that are op-amp and IC based, you might be better off not using the input resistor and putting 100nF ceramic caps on the power pins of all the IC's.
Affiliations: Music Unfolding (musicunfolding.com), software based effects and Rockā€¢it Frog (rock.it-frog.com), DIY effects (coming soon).

muddyfox


I see. Since there's apparently no generic solution that's good enough for all cases, I need to start writing this down.  ;D

Thanks!