Apparatus and method for measuring insulation resistance of battery
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United States of America Patent
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Jan 10, 2017
Grant Date -
Apr 3, 2014
app pub date -
Dec 5, 2013
filing date -
Mar 26, 2012
priority date (Note) -
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Abstract
Disclosed is an apparatus for measuring an insulation resistance that may calculate each of a cathode terminal-side insulation resistance value and an anode terminal-side insulation resistance value of a battery. The apparatus for measuring an insulation resistance according to the present disclosure forms different first and second circuits by selectively connecting an insulation resistance measurement unit to a cathode terminal or an anode terminal of the battery, and calculates a cathode terminal-side insulation resistance value and an anode terminal-side insulation resistance value from first and second insulation detection voltages applied to the insulation resistance measurement unit and simultaneous circuit equations derived from the first and the second circuits. Accordingly, quantitative insulation resistance values of the cathode terminal and the anode terminal of the battery may be each obtained.
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