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I1high

Three-Phase Electronic Watt-Hour Meter Design Using MSP430

www.ti.com 2.3 Current Inputs-Current Transformer (CT) V R71 160 k Ω R74 10 k Ω R21 1 k Ω R21 5 Ω C38 100 nF V R68 10 k Ω R27 1 k Ω C39 10 µF IC8B LM324 C18 100 nF C20 10 µF R40 5 k Ω C19 10 µF 5 6 7 2 3 1 13 12 14 P1 1 2 C14 2.2 nF D4 R28 3.3 k Ω IC3D LM324 IC3A LM324 V I1LOW I1HIGH ...