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Reply-To: "fred bartoli"
From: "fred bartoli"
Subject: Re: Problem with Spice simulation of Linkwitz-Riley filter
Date: Thu, 19 Sep 2002 10:35:50 +0200
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Organization: Guest of ProXad - France
NNTP-Posting-Date: 19 Sep 2002 10:34:45 MEST
john jardine a écrit dans le message :
> email@example.com (Carlos) wrote in message
> > Hi all,
> > I'm having a strange problem with a Spice simulation of a Lowpass 2nd
> > order Linkwitz-Riley filter (that's two 1st order Butterworth in
> > series). I have the evaluation version of Spice, which should work ok
> > with two opamps and such a simple circuit.
> > If I simulate the following (it's very simple so I'll just describe
> > it):
> > Vin -> R in series -> C to ground -> unity gain non-inverting opamp ->
> > R in series -> C to ground -> unity gain non-inverting opamp -> Load,
> > Many thanks in advance,
> > Carlos (I'm really at clorenzogNO@SPAMnavegalia.com, you know what to
> > remove)
> My general apologies for overt sarcasm but my cat and me have
> discovered that a C plus an R will filter high frequencies. We've
> decided to call it the Spot-Jardi configuration. We feel this
> arrangement may possibly also be configured to block low frequencies
> and will henceforth, be looking for research funding to pursue the
Is your cat a parent of the fortunate one that participates some tales in
quantum mechanics ?
Maybe you could take advantage of inductors to fill the gap between quantum
and relativistic machanics ?
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