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DC measurement using ADE7754

Question asked by juwel997 on Oct 6, 2016
Latest reply on Oct 25, 2016 by nchandra


I am trying to built a single phase DC energy meter using ADE7754 energy ic. Only A phase is used and all other is connected directly with the circuit ground. Phase A Current channel is connected with a shunt resistor and voltage is through a voltage divider. Part of the diagram is in the attached word file. No calibration is done. But whenever i turned off the HPF in current channel then a large reading appears in the current reading(AN-639 dc offset). The main problem is that the energy register also starts to increase although no load is connected. i tried the AAPOS register. but no effect. Is there any way to steady the energy register?