[Diy_efi] RE: I need to rectify a low ac voltage.

[Jörgen Karlsson]

I found some notes that I made when I designed a speaker testing rig. It had
everything I need and a few things I don't need. Like the notes about the
strange behavior of the rectifier ;)

Jörgen

> -----Original Message-----
> From: Jörgen Karlsson [mailto:jorgen.m.karlsson at home.se]
> Sent: Saturday, July 20, 2002 2:05 PM
> To: diy_efi at diy-efi.org
> Subject: I need to rectify a low ac voltage.
>
>
> Hi,
>
> I need to measure an AC voltage in the 50-500mV range with a
> micro controller. This is for reading the impendance of the sense
> cell in a bosch LSU (or NTK UEGO) sensor.
>
> Can anyone please help me to rectify and filter the signal, I
> can't come up with a good way to do this.
>
> Jörgen



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