Im really new to KiCad so not sure what is wrong with the circuit, when I try to run the simulation I get Error reading simulation model from symbol SC1 and U1

Schematic Simulation (Ngspice)
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schi updated
schi updated937×646 29.9 KB

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KiCAD only contains basic (=passive) Spice models plus a few simple ones (eg, BJT, MOSFET).
For your circuit, you’ll need to search for the correct model files (usually at the manufacturer) and import/attach them to the relevant symbol.

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This model was in the KiCad library though.

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I can’t identify your SC1, so no idea.
But the BQ25504 Spice model is certainly not in the KiCAD library,
You’ll need to check www.ti.com to get it.

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Since you are new to KiCad and apparently SPICE
I would suggest starting with something simple.

Here is the link to an example

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image
image1324×877 62.2 KB

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The symbol and footprint are available from the Kicad libraries, but not the spice model. You have to search and connect it to the symbol by yourself. You should definitely first start with the basics, like already advised!

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Besides that, you are missing some ground symbols (at SC1 and C3/4) and all your resistances are in milli Ohms, if I’m not mistaken. And grounding pin 14 is also possibly not what you want.

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