AC Measurement

[Acetronics2]

See Here:

http://ww1.microchip.com/downloads/e...tes/00220a.pdf

That's the smart way ...

Alain

[Atom058]

Alain! Thanks for the link to the ap note! That looks like what I am trying to achieve. I have ordered the parts for the input side of the circuit as well as a variable transformer (for testing).

Bill - I found the index listing for the article that you told me about but it is not available for viewing. Is there a way to get a copy of the article from them?

I will try to put together the circuit from the ap note and let everyone know how it goes and post my results. Keep your fingers crossed!

Thanks everyone!

[Atom058]

Hello All - As promised, when I came up with a suitable solution, I would post it. Here it is... It works well for my application - I just need a good response between 110 and 125VAC. I used a split-bobbin transformer, bridge-rectified it and put it through a voltage divider (that has a trimmer on it so that you can adjust the output a little). Simple and cheap solution. Get nice values over the range I am interested in (about 1VDC over 15VAC range).

Enjoy! And thanks!

Atom058