Filter design utility

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Filter design utility

Postby AncientBrit » Wed Nov 23, 2011 6:38 pm

I came across this site that has several useful utilities for designing LPF and HPF filters.

LPF:
http://www.beis.de/Elektronik/Filter/ActiveLPFilter.html

HPF:
http://www.beis.de/Elektronik/Filter/ActiveHPFilter.html

Main site:
http://www.beis.de/Elektronik/Electronics.html

The default gain for each stage is unity but other gains may be selected.

I've found it useful in designing anti-alias filters for NBTV,

Regards,

Graham
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Postby Steve Anderson » Wed Nov 23, 2011 8:59 pm

An alternative is from Texas, sadly Windoze only but it does include Bessel, Chebychev, Butterworth, Linear Phase and custom filters, in both low and high-pass configurations...as many poles as you can shake a stick at. In either MFB (multi-feedback) or Sallen-Key and at any sane gain from unity upwards. The good thing is it's free...

http://www.ti.com/tool/filterpro

I think it was highlighted in a recent newsletter...

Steve A.

P.S. Good to see you around Graham...
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Steve Anderson
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Postby AncientBrit » Wed Nov 23, 2011 9:49 pm

Hi Steve,

That's a useful design tool as well,
thanks.

Graham
AncientBrit
Green padded cells are quite homely.
 
Posts: 858
Joined: Mon Mar 26, 2007 10:15 pm
Location: Billericay, UK


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