I have been trying to simulate a fully controlled full bridge using SiC MOSFETs and so far haven't gettng at least expected results. So I tried to check what is happening using a single MOSFET and a simple circuit like this - Simple MOSFET driving circuit

However, when I run the simulation, the current through the resistor looks like this -

Current through MOSFET/resistor

I need to uderstand what I am doing wrong while simulating this circuit.
1. Does the gate need a resistor in series ?
2. The floating terminals of the MOSFET are Tj and Tc (temperatures) I have assumed that they can be kept floating.

Zoomed in waveform - zoomed waveform of one apparent pulse Edit -
The MOSFET is rated at 1200V and 90A. The simulation works fine up until Vds as ~55V. Thereafter it breaks down and shows these similar results for any voltage above ~55V

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    \$\begingroup\$ zoom in on one of those switching events--- use 1` nanosecond/division \$\endgroup\$ – analogsystemsrf Oct 13 at 21:06
  • \$\begingroup\$ @analogsystemsrf updated the question \$\endgroup\$ – shreyas Oct 16 at 11:48
  • \$\begingroup\$ I've had a similar experience trying to solve this problem recently and had to stop before i found a solution so i'd be interested in the result of this question too. \$\endgroup\$ – hooskworks Oct 16 at 11:50
  • \$\begingroup\$ Could you post the contents of the library? Only for this device. While I'm not saying this is the case, it could be that the model is not that good, or that it needs special SPICE considerations. \$\endgroup\$ – a concerned citizen Oct 16 at 18:32
  • \$\begingroup\$ @aconcernedcitizen I downloaded the model from Wolfspeed/CREE's website and I'm skeptical about it being shared here because it required user signup. The website is go.wolfspeed.com \$\endgroup\$ – shreyas Oct 17 at 15:42

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