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US 11,698,400 B2Granted
Electronic circuit
AssigneeKabushiki Kaisha Toshiba
InventorShusuke Kawai
Life of this patent
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Abstract
According to one embodiment, an electronic circuit includes an oscillator and a measuring circuit. The oscillator generates a first signal with a frequency corresponding to a time. The measuring circuit measures a first voltage based on a resonance frequency in a terminal of a semiconductor device where the first signal is supplied.
Claims19
An electronic circuit comprising:
- an oscillator that generates a single chirp signal having different frequencies in accordance with time, the chirp signal being applied to a gate terminal of a semiconductor switching device;
- a detection circuit that generates an envelope detection signal based on an input voltage to the gate terminal of the semiconductor switching device, the gate terminal being applied with the chirp signal;
- an inverting circuit that generates an inverting signal of the envelope detection signal;
- and
- an output circuit that outputs a peak voltage of the inverting signal.
2 more elements
Dependencies are inferred from the claim text.