Help me finish a harmonics ammeter!

[John_GGGG]

Harmonics Ammeter???

Hey,
I'm looking at putting together an ammeter that I can tune to various harmonics up to maybe 11th.
I've identified a couple of switched capacitor filter chips that will cover the filtering aspect of it sufficiently.
The next bit is the signal processing:
Considering a true RMS chip and simple 8bit ucontroller for A/D and LCD driving.
Does anybody have any pointers for parts or configurations suitable?
Thanks.

 

[IanP]

Re: Harmonics Ammeter???

Have a look at the selection of RMS-to-DC converters:
https://www.chipcatalog.com/Cat/83.htm
Some of them you will be able to obtain as samples.
Regards,
IanP