Semiconductor device
AssigneeFuji Electronics Co., Ltd.
InventorsShuangching Chen, Shogo Ogawa
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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.
Claims5
A semiconductor device, comprising:
- 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.
Dependencies are inferred from the claim text.