Digitizing power meter
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United States of America Patent
Stats
-
Jul 21, 1992
Grant Date -
N/A
app pub date -
Feb 7, 1990
filing date -
Feb 7, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A digitizing power meter for measuring voltage and current's root-mean-square, average power and power factor, which includes a voltage detector circuit and a current detector circuit to measure voltage and current analog signal; a phase-lock circuit, a voltage Sampling/Holding circuit, a current Sampling/Holding circuit, a trigger circuit, a voltage A/D converter and a current A/D converter to convert analog signal to measure to digital signal; and a digital processing circuit to accurately measure out voltage and current's root-mean-square, average power and power factor by means of the operation of its microprocessor.
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