| 摘要 |
This application concerns a device for autoranging highly accurate power measurements, specifically of electrical current, using current transducers such as Rogowski coils, incorporating a Time Division Multiplexing Subrange selection mechanism, analog to digital modulators, and a state machine for cycling through the various measurement subranges in order to automatically select the optimal range, effectively widening the dynamic range of the employed analog to digital modulators. Envisioned Applications include, but are not limited to, smart metering in households, small business and appliances, "zooming in" on very small standby currents, and wide range measurement applications in distribution automation.
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