SRF Tech
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Posts: 59
Arizona
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Bharat, I think the discussion got confused regarding the situation in which power is being measured, so your question is not surprising. As for your question, when a circuit is present, and power is being dissipated between VDD and VSS, as long as total current paths are accounted for, you can monitor the current flow into either VSS (When considering current sinking into VSS, ensure you are accounting for load currents as well as the buffer) or out of the VDD node, either way, you are measuring the flow of current at a given voltage, from this you calculate the power you are looking for (DC, average, RMS, etc). -SRF Tech
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