>For example, I have these measurements:
>(I used a handheld clamp meter to read these AMPs,
>the voltage is read using my system)
>2.2 AMP = .13 V, 4.7 AMP = .26 V, 12 AMP = .57 V.
>So I measure anywhere from 100 mV AC per 1.69 AMP
>to 100 mV per 2.1 AMP.
>This also does not seem to be a linear mapping.

I would suggest you enter these into a spreadsheet, and get a graph of the
v/A. I suspect the line will cross the appropriate axis at a voltage that
represents the diode drop of the bridge rectifier. Just remember that the
way you are rectifying the voltage is not a "perfect" rectifier.

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