Apparatus and method for reducing temperature influence in measuring switching current

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United States of America Patent

PATENT NO 11942939
APP PUB NO 20220286115A1
SERIAL NO

17491407

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Abstract

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An apparatus for reducing a temperature influence in measuring a switching current based on stray inductance. The apparatus includes a current detector configured to output a voltage derived from a differential component of a current so as to detect a switching current of a power module, a filter configured to filter the voltage output from the current detector, an integrator configured to integrate a voltage output from the filter, an ADC configured to convert an analog voltage output from the integrator into a digital voltage and sample the digital voltage, a scaler configured to convert a sampled integrator output value output from the ADC into a scaled current value, and a compensator configured to remove a temperature dependent DCR effect from the scaled current value.

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Patent Owner(s)

Patent OwnerAddress
HYUNDAI MOBIS CO LTDGYEONGGI DO SOUTH KOREA GYEONGGI-DO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Sang Min Yongin-si, KR 135 582

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