rajdeep
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Hi all,
I have a requirement where I would like to model a capacitor as a function of frequency. Its like C(s) = C*H(s) where H(s) is a transfer function.
To start with, I tried to write the simple frequency model of a capacitor i.e. V = I*(1/sC). I could only think of writing it in the following way: V(p,n) <+ laplace_nd(I(p,n),{1},{0,C}); whre C is constant. [My next step would be to make this C dependent on frequency.] But it doesnt give me expected result, what I usually get if I use a standard capacitor or use I(p,n)<+C*ddt(V(p,n)).
I am no longer very fluent with laplace transform, but I would think thats the correct frequency domain model of a capacitor with initial voltage 0.
I also wonder is there any other way to express a quantity w.r.t frequency other than laplace transform?
By the way, I am using this model for ac analysis only.
Thanks, Rajdeep
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