Harold M Hallikainen wrote:
>
>         For measuring RMS power, there's a chip (from Analog Devices, I
> think) that does power to frequency conversion.  It does analog
> multiplication of the voltage and current samples, giving instantaneous
> power, then drives a V to F converter.  For energy (joules or watt
> seconds), just count the pulses.
>
> Harold

Go to http//:www.sames.co.za I know they have a few flavours of a chip
that gives you x ticks/watt (RMS) os something like that.

--
Friendly Regards

Tjaart van der Walt
mailto:tjaart@wasp.co.za
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