Switch deterioration detection device and method
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United States of America Patent
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Mar 6, 2018
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N/A
app pub date -
Jul 29, 2015
filing date -
Oct 6, 2014
priority date (Note) -
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Abstract
Provided are switch deterioration detection device and method. More particularly, the switch deterioration detection device includes: a resistor serially connected with a battery in which charge and discharge are controlled through a switch; a first differential amplifier configured to amplify a voltage difference between both ends of the switch to output the amplified voltage difference as a first output voltage; a second differential amplifier configured to amplify a voltage difference between both ends of the resistor to output the amplified voltage difference as a second output voltage; a comparator configured to compare levels between the second and second output voltages; and a controller configured to determine whether the switch deteriorates based on the compared result of the comparator.
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