WHEEL SENSOR INTERFACE APPARATUS
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United States of America Patent
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Issued Date -
Oct 19, 2017
app pub date -
Apr 17, 2017
filing date -
Apr 15, 2016
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Abstract
A wheel sensor interface apparatus may include: a wheel sensor interface unit configured to supply power to a wheel sensor of a vehicle, or sense an output current of the wheel sensor and transmit the sensed current to a microprocessor unit of the vehicle; and an over-current detection unit including: a reference current generation unit configured to generate a reference current using a voltage across a resistor through which the output current flows; and a voltage level decision unit configured to decide a voltage level according to the reference current. The over-current detection unit may determine whether the output current is an over-current, according to the voltage level.
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