ELECTRIC LEAKAGE DETECTING APPRATUS
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United States of America Patent
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Issued Date -
Feb 6, 2014
app pub date -
Jul 26, 2013
filing date -
Jul 31, 2012
priority date (Note) -
Abandoned
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Abstract
An electric leakage detecting apparatus is provided with: a first protective resistor in which one end is connected to the positive terminal of a battery; a first detecting resistor in which one end is connected to the other end of the first protective resistor; a second detecting resistor in which one end is connected to the other end of the first detecting resistor; a second protective resistor in which one end is connected to the other end of the second detecting resistor, and the other end is connected to the negative terminal of the battery; a chassis ground that is connected to one end of the second detecting resistor; a switch for applying a reference voltage to one end of the second detecting resistor at an arbitrary timing; and an electric leakage determining circuit that determines the presence of an electric leakage at a midpoint of the battery.
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