POWER CONSUMPTION MEASURING DEVICE
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United States of America Patent
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Issued Date -
Jun 13, 2013
app pub date -
Jan 31, 2012
filing date -
Dec 13, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A power consumption measuring device includes an analog-to-digital converter and an arithmetic unit and serves to convert a current signal supplied to a load into a measurement digital signal by the analog-to-digital converter, send the measurement digital signal to the arithmetic unit for measuring a power consumption level of the load. The power consumption measuring device is characterized in that: the arithmetic unit selects a current gain value and a correction compensation value based on a current range into which the measurement digital signal falls and adapted to adjust a gain value of the analog-to-digital converter for reducing an error rate and enhancing accuracy of the next measurement digital signal.
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