[sdiy] Filter problems

Neil Johnson neil.johnson71 at gmail.com
Sun Jan 28 15:37:26 CET 2018


Rutger Vlek wrote:
> Just out of curiosity, would it also help to make the resonance path AC-coupled (rather than a DC path)? It avoids DC in the filter building up, although I can imagine offsets that interact with cutoff frequency to become problematic.

No, as that is not the main source of problems (it just adds a small
DC offset to the input).   The problems lie in the integrators
themselves.

Neil
-- 
http://www.njohnson.co.uk



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