After recalibrate the adp1048 meter, i found the accuracy about 5%,
ADI pomotion data shows@@ the accuracy only +-1%
can you support the adp1048 meter test reuslt for me?
Vin:90~264v, load: light load ~heavy load (600w)
From your data, I do not think the calibration is done well. There is a negative offset. If you remove the offset, the accuracy will be better.
See attached the data I have.
I hope the meter accuracy can be limited +-2 %,when Vin 90~264V, No matter any load
you can see the Pink line which about +1% accuracy when vin 264V &load 30%
you can see the blue line which about -4% accuracy when vin 90v & load 100%
If I shift the offset Value, maybe blue line can be rising to -2%, but Pink line will shift to+3%
the total accuracy over 5%.
Do you have any V meter or I meter test result which reading was come from evb-adp1048?
i have replied you by mail. Please check it.