Simscape: Linear transformer open circuit error

Hello,

I'm trying to model a full-bridge DC-DC converter in simscape. I have the model built using ideal switches for the mosfets with a simple switching scheme. However, when I run the model, even though the simulation time is 0.05s it comes up with an error that at t=8s, the linear transformer is "open-circuited" because a couple switches are off simultaneously. This off-time should happen and is normal for the switching scheme.

I've attached a couple pictures of my diagram and error.

Would this error be because of no anti-parallel diodes with the switches?

Thanks!

[Suhan]

You can refer to the following article:

https://in.mathworks.com/matlabcentral/answers/171909-why-do-i-get-an-error-about-inductors-connected-together-when-simulating-a-model-in-ideal-switching

Answer 1

[Joel Van Sickel]

Hello Ryan,

yes, you can create circuits that our tool cannot simulate with this topology. If you include things like diodes and snubbers, this can solve the problem.

Regards,

Joel