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After my simulation, I am getting this in my output, which does not look good at all. I find it difficult to find a spice model for DC/DC isolator that can give me a positive, negative supply, and common to connect the SiC drive to. enter image description here

I decided to do it this way as shown in the datasheet, and this was my output result when the input voltage was 400V. enter image description here

Note: this is just for simulation purposes. Please assist me; I need to start building my PCB for the DC/DC isolator and will be using "MEJ2D1209SC." I am unable to get a spice model for this product.

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    \$\begingroup\$ Cheat and use the e function? It will isolate whatever input signal to give output signal. Gain can be used too if you for example want to have 3.3 V input and 15 V output. \$\endgroup\$
    – winny
    Commented Jun 14, 2022 at 15:14
  • \$\begingroup\$ what are you displaying on the graph? what's the graph supposed to look like? And this displayed circuit diagram isn't buck-boost. \$\endgroup\$
    – Stack Exchange Supports Israel
    Commented Jun 14, 2022 at 15:30
  • \$\begingroup\$ That is what I am getting for my output. I am using that gate drive to drive my SiC mosfet. My issue is that there is no dc/dc isolator, so the SiC has to be connected this way as shown in the datasheet to run my simulation. \$\endgroup\$
    – victor_uk
    Commented Jun 14, 2022 at 15:38

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