Sorry for the unclear question.

Yes, I'm trying to get the average DC level, the RMS value of the sine wave.



----- Original Message -----
From: "Olin Lathrop" <olin_piclist@EMBEDINC.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Friday, November 21, 2003 8:57 PM
Subject: Re: Sine wave to DC conversion


> Tan Chun Chiek wrote:
> >         I have a 4Vp-p sine wave (1 to 20khz) offsetted at 3v from a
> > switched capacitor filter as a bandpass filter onboard a maze
> > navigating robot. It's for a few IR sensor pairs.
> >
> >     How can i have this signal converted to a DC signal (0-4V) using
> > LM324 opamps powered by a single rail 6V (maybe more) supply?
>
> What exactly do you want this "conversion" to DC to do?  Are you trying to
> get the average DC level?  The amplitude?  Something else?
>
>
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