Semiconductor device
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United States of America Patent
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Oct 9, 2018
Grant Date -
Jan 18, 2018
app pub date -
May 22, 2017
filing date -
Jul 15, 2016
priority date (Note) -
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Abstract
A semiconductor device includes a switching element including a control electrode, a first main electrode, and a second main electrode: a gate driver connected between the control electrode and the first main electrode, configured to transmit a gate drive signal for driving the control electrode; a Miller voltage detector detecting a Miller voltage between the control electrode and the first main electrode when the switching element turns off; a current value detector detecting a principal current flowing through the switching element; and a temperature calculator calculating a temperature of the switching element from the detected Miller voltage and principal current.
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