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Modeling >> Behavioral Models >> how to model polyphase filter
https://designers-guide.org/forum/YaBB.pl?num=1204580565

Message started by Faisal on Mar 3^rd, 2008, 1:42pm

Title: how to model polyphase filter
Post by Faisal on Mar 3^rd, 2008, 1:42pm

Hi,

I am looking to make a behavioral model of the polyphase filter (along with the mismatch effects)

Title: Re: how to model polyphase filter
Post by Stefan on Mar 3^rd, 2008, 2:35pm

So - what's the question or the problem ?

Title: Re: how to model polyphase filter
Post by jbdavid on Apr 13^th, 2008, 10:29pm

do the actual filter using electrical nets..
use ddt for the caps, (I = C dV/dt)
each cap and each resistor can have the mismatch added on using the $rdist_normal function

YOu can even, generate new mismatch values on a timer.

Title: Re: how to model polyphase filter
Post by Stefan on Apr 13^th, 2008, 11:22pm

You don't need to use electrical nets, you can also use signal-flow disciplines like wreal for them. This makes the whole simulation faster, but you'll need to use $dist_normal instead of $rdist...

Regards,

Stefan