CREE C2M0080120D

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Identification tool

The parameter extraction has been done by means of a Matlab-PSpice parameter identification tool for SiC MOSFETs called MOSPEX which you can find here. It is a user-friendly Graphic User Interface (GUI) that you can use on your own.

Tests performed

Static

Fig. 1 reports the comparison between the experimental DC Transfer curves and the simulated static output characteristics at different junction temperature values. It can be observed as the current capabilty of the MOSFET increases for higher temperatures when the gate voltage is low (NTC: negative temperature coefficient), while it decreases when Vgs is high (PTC: positive temperature coefficient).

Fig. 1. DC Transfer Characteristics validation.

Fig. 2 reports the comparison between the experimental DC Output curves and the simulated static characteristics at different junction temperature values.

Fig. 2. DC Transfer Characteristics validation.

Fig. 4 reports the comparison between the experimental capacitance measurements for a drain bias sweep (Vgs=0) and the simulated curves.

Fig. 3. Capacitance measurements validation.

Fig. 4 reports the comparison between the measured conduction power losses and the simulated ones for increasing drain current and different junction temperatures.

Fig. 4. Conduction power losses validation.

Dynamic

Fig. 5 and Fig. 6 show the comparison between measured and simulated turn-on and turn-off waveforms for drain current and voltage at the following testing conditions: Id=30 A, Vdc=600V and T=125C. A Double-Pulse test circuit has been used for the measurements, and some parasitic elements have been included in the simulation to emulate the real oscillation of the experimental waveforms.

Fig. 5. Validation of the drain current switching waveform.

Fig. 6. Validation of the drain voltage switching waveform.

Fig. 7 reports the comparison between the measured switching energy losses and the ones estimated by the model at room temperature, for increasing drain current and for different DC bus voltage values.

Fig. 7. Validation of the switching energy losses.