Filter design utility

Anything not specifically related to NBTV, but at least of some technical nature that might be of interest to NBTV members. Items for sale and links to retailers do not belong here.

Moderators: Dave Moll, Steve Anderson

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

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...
User avatar
Steve Anderson
"Fester! Don't do that to 'Thing'"
 
Posts: 5360
Joined: Fri Mar 30, 2007 10:54 pm
Location: Bangkok, Thailand

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


Return to Off Topic

Who is online

Users browsing this forum: No registered users and 16 guests

cron