noisepic
Member level 3
I have a bridgre rectifier curcuit able run at 25A. The input is AC 30V, the measure output power is easy P=Vdc*Idc. But input measure by VAc*Iac rms at low current make eff > 100%. Is the problem of power factor?
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P = V_RMS x I_ RMS x powerfactorVAc*Iac rms