How could I convert values into AWATT, BWATT, and CWATT registers in the WATT units on the ADE7978 chip? How can I calculate coefficient?
Thanks for any ideas.
Calibrate the meter first. Apply a known current and voltage input to the chip at a particular angle(if preferred) and equate it to the instantaneous power reading that you get in those registers, to get the coefficient. With this you can then convert other power readings as well.
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