Development of an output characteristics measuring platform for high voltage and large current of power devices and calculation of switching waveforms using the measured values

This paper proposes an estimation method of switching-waveforms in power devices based on only characteristics of drain-source capacitance, gate-source capacitance, and gate-drain capacitance and output characteristics of $i_{\text{d}}-v_{\text{d}\text{s}}$. Since the proposed method needs the $i_{\text{d}}-v_{\text{d}\text{s}}$ characteristics in wide-current and -voltage range, this paper also proposes a measurement platform having capability of the $i_{\text{d}}-v_{\text{d}\text{s}}$ characteristic measurement under both high-voltage and large-current condition. The proposed method makes it possible to reproduce gate–source voltage variation due to the short-channel effect around the Miller plateau. It is confirmed that the estimated switching waveforms well agree with the ones measured in the experiment.