Tony Vandiver ha scritto:
> I've done something similar, (but with a little less accuracy) by 
> rectifying the output of the transformer and just doing a straight 
> average of the ADC then translating back with a fixed multiplier.  Works 
> o.k. as long as there's no other load on the transformer.  You'll get 
> better results if you calibrate this (it's difficult to depend on the 
> repeatability of the turns ratio of the transformer for a 1% accuracy).

I see Tony, I actually wanted to avoid most of external components.
I basically have the transformer and a R partitor.
Calibration is something I'll have to perform anyway, unfortunately...

thanks
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