Semiconductor device, power supply device and control method for semiconductor device
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United States of America Patent
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Nov 28, 2017
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Nov 17, 2016
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Dec 7, 2015
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Abstract
A semiconductor device configured to perform an A/D conversion of a wide range of signals is provided. A semiconductor device includes: an input voltage detection unit configured to detect an analog input voltage; a reference voltage setting unit configured to set a reference voltage based on the detected input voltage; an amplifier configured to amplify a difference between the input voltage and the reference voltage; an ADC configured to perform an A/D conversion of an amplified signal; and an arithmetic processing unit configured to calculate a digital voltage corresponding to the input voltage based on a result of the A/D conversion and the reference voltage.
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