VOLTAGE MEASUREMENT CIRCUIT
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United States of America Patent
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Sep 15, 2016
app pub date -
Oct 7, 2013
filing date -
Nov 15, 2012
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Abstract
A voltage measurement circuit, which can reduce a withstand voltage of each of voltage dividing resistors for voltage measurement, with respect to a surge voltage generated at the time of turning-on of a dark-current reduction relay, thereby enabling cost reduction, is provided. The voltage measurement circuit includes: a high-voltage input terminal; a plurality of voltage dividing resistors which divide a high voltage; a voltage measuring part which measures a voltage reduced to a low voltage by the plurality of voltage dividing resistors; and a dark current reduction relay which is connected in series between adjacent ones of the plurality of voltage dividing resistors.
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