Apparatus for detecting noise in power supply of PLC analogue input and output module
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United States of America Patent
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Oct 3, 2017
Grant Date -
Jul 28, 2016
app pub date -
Dec 29, 2015
filing date -
Jan 19, 2015
priority date (Note) -
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Abstract
An apparatus for detecting noise in a power supply of a PLC analog input/output module is provided. The apparatus may include a capacitor configured to extract a noise determination target voltage from a driving voltage outputted from the power supply; a voltage conversion unit configured to convert the noise determination target voltage outputted from the capacitor and to output the converted noise determination target voltage; a comparison unit configured to compare the noise determination target voltage converted by the voltage conversion unit with a reference voltage; and a determination unit configured to determine whether the noise determination target voltage is a noise, based on a comparison result by the comparison unit.
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