# Simulating MOSFET equations with ModelingToolkit

**URL:** https://discourse.julialang.org/t/simulating-mosfet-equations-with-modelingtoolkit/52408
**Category:** New to Julia
**Tags:** modelingtoolkit
**Created:** [December 26, 2020, 4:00pm UTC](https://discourse.julialang.org/t/simulating-mosfet-equations-with-modelingtoolkit/52408 "2020-12-26T16:00:24Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![MA\_Laforge](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ma_laforge/32/385_2.png) [@MA\_Laforge](https://discourse.julialang.org/u/MA_Laforge)
#### Post date: [December 27, 2020, 9:33pm UTC](https://discourse.julialang.org/t/simulating-mosfet-equations-with-modelingtoolkit/52408/5 "2020-12-27T21:33:35Z")

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Very interesting. I looked a bit at ModelingToolkit.jl but I did not think it was useful to perform circuit simulations.

I thought everything under the SciML umbrella was for machine learning. I thought it was mainly for creating models from empirical data. I must admit I have recently heard discussions on using these tools with “physics-based modelling” (Karen Willcox) to get improvements - but I don’t really have a grasp on how things fit together:

→ [https://youtu.be/gfHMPIxEyv4](https://youtu.be/gfHMPIxEyv4)

I personally was leaning towards Modia.jl as a solution to this kind of thing:

[https://github.com/ModiaSim/Modia.jl](https://github.com/ModiaSim/Modia.jl)

Modia appears to follow in the footsteps of the Modelica toolset. I find the solutions look alot more like what you write in VerilogA/VerilogAMS - so I had a better idea how to approach the problem. I suppose I should look more into this ModelingToolkit package, then.

### RFI

But if someone can point me to some useful information comparing these tools (Modia, ModelingToolkit, SciML) in the context of creating circuit simulations/simulators, I would very much appreciate it 🙂 .

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