ltspicemosfetmosfet-driverpower electronics
I am trying to simulate the SiC mosfet in ltspice of ROHM.
I am using the spice model provided by the company https://www.rohm.com/products/sic-power-devices/sic-mosfet/sct2450ke-product/tools
But still, I am not able to do the switching properly. What is the problem.
What wrong I am doing, Kindly tell me.
This is defined as a subcircuit:
.SUBCKT PSMN2R0_30PL DRAIN GATE SOURCE
LTSpice needs this to have somewhat special treatment, so you will need to do the following:
CTRL+Right click on the device and you will get this window:
Now edit the Prefix and Value lines: The prefix for a subckt is 'X'. The model name is precisely as defined in the lib file.
Now click OK. You will need to add a spice directive on your schematic:
.include PSMN2R0_30PL.lib This assumes it is in the same directory as the simulation circuit.
LTSpice should now be happy with the part.
Here is what you should see on the schematic:
You can, of course, add it to the LTSpice model tree, but I find it easier to use this method.
I don't think you can add a + to indicate a line extension, its 1 line per model. It should look like the others. Here is an example:
.model RFNL5BM6S D(Is=778.9p N=1.419 Rs=25.53m Ikf=81.74m Eg=1.05 Cjo=93p M=513.2m Vj=714.8m Isr=358.2p Nr=3 Bv=600 tt=88.29n Tikf=18m Trs1=700u Iave=5 Vpk=600 mfg=Rohm type=FastRecovery)
Second thing, check your directory. The new LT spice places a folder in
User\Documents\LTspiceXVII\lib\cmp\standard.dio
this is the one that needs to be edited.
Best Answer
First check that pins 1,2,3 are what you think they are.
From the Spice listing...
Notice anything about the last 2 lines?
Second, what is a 1000V supply and a 10 ohm load going to do to a 10A device?