Can Simscape Electronics give the transfer function of a filter in closed form solution?

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Dale Wittlock
Dale Wittlock 2017-7-11
评论： Sebastian Castro 2017-7-11
For a linear system such as an op amp active filter can simscape electronics give me the transfer function as an s-domain equation (laplace domain - steady state)?

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回答（1 个）

Sebastian Castro
Sebastian Castro 2017-7-11
If you have a set of input/output Simulink signals that you can designate, you can use Simulink Control Design to linearize the electrical filter model.
https://www.mathworks.com/help/simulink/ug/linearizing-models.html
- Sebastian
  2 个评论
Dale Wittlock
Dale Wittlock 2017-7-11
Sebastian, thanks for the answer. Can you be more specific about the equations/closed-form-solution? I do not want a numerical solution, I want the equation for the transfer function in the form of a Laplace transform of the differential equations assuming that the equations would be linear ordinary differential equations. An ideal op amp circuit would be inherently linear so I do not think any linearization would be necessary.
Sebastian Castro
Sebastian Castro 2017-7-11
Right. If you linearize an already-linear system, then this process basically converts the model into a state-space or transfer function representation. So that would be how you extract the s-domain transfer function from a Simulink model.

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