Hello,
I'm quite new to COMSOL. I generally have doubts where to use external U vs. I or external I vs. U when I want to insert my designed model into a circuit. I think in any of those cases I have to choose the excitation method accordingly, right? Is there a guideline for that?
What exactly is the difference? I tried to compute the model "inductor-in-circuit" in the model library once using the external U vs. I and the other time using external I vs. U. the computation of the model with external U vs. I takes a lot longer but converges and eventually finishes, however the resulting plots for the magnetic flux density norm are very different. So I don't understand how these choices affect the physical reality of the problem and why are the results different?
I'm quite new to COMSOL. I generally have doubts where to use external U vs. I or external I vs. U when I want to insert my designed model into a circuit. I think in any of those cases I have to choose the excitation method accordingly, right? Is there a guideline for that?
What exactly is the difference? I tried to compute the model "inductor-in-circuit" in the model library once using the external U vs. I and the other time using external I vs. U. the computation of the model with external U vs. I takes a lot longer but converges and eventually finishes, however the resulting plots for the magnetic flux density norm are very different. So I don't understand how these choices affect the physical reality of the problem and why are the results different?