Multiplexing a full wave rectifier!

[Magnus Danielson]

From: "Bjorn Julin" <bnillson at hotmail.com>
Subject: Re: Multiplexing a full wave rectifier!
Date: Thu, 05 Oct 2000 23:59:54 GMT

> > > Hmm, takling about filters, is it insane to multiplex a allpass
> > > among a bunch of channels? I dont need to go above 12Khz!
> 
> >Yes, multiplexing an allpass filter is insane, in reality you would
> >get crosstalk between the channels, since the capacitors would keep
> >the charge. Multiplexing the caps too would possibly solve this, but
> >then you have a lot of switches, so... here the benefit is less
> >obvious. The cross-talk would be strongest at the low frequency, and
> >better at higher frequencies, but it would be so bad that you better
> >just mix the signals directly, since that is basically the effect you
> >will get.
> 
> Muxing a Hipass then?
> I must be in sane, i will never give up! :-)

It is equally insane ;)

I certainly don't blame you for trying ;^)

> Actually, in what order do you mean that this muxing is
> taking place? My order are, allpass-buffer-switch-cap-buffer.

I meant you switch input, output and capacitors... but now we are
talking rude stuff ;)

> Well my arrangement are infact a 
> rectefier-buffer-switch-cap-buffer-mixer-out!!

Um... just wondering what this setup does... ah well, I guess I will
learn that soon enougth.

Cheers,
Magnus