Let me use an example to explain my problem.
http://i43.tinypic.com/akwpaa.png
at t=0, the switch closes.
lets say we use the transfer function approach and we obtain the poles to this function.
the function for current or voltage will be either:
=a(1-e^-p1*t)+b(1-e^-p2*t)
or
= a(e^-p1*t)+b(e^-p2*t)
in a generic case == a(1*e^-t/T)+b(1*e^t/T) where T= period.
i know from experience that this is case 2 as when the switch closes, it becomes a RLC circuit thus the steady state will equal 0.
is there any real stratergy to know which equation to use?
http://i43.tinypic.com/akwpaa.png
at t=0, the switch closes.
lets say we use the transfer function approach and we obtain the poles to this function.
the function for current or voltage will be either:
=a(1-e^-p1*t)+b(1-e^-p2*t)
or
= a(e^-p1*t)+b(e^-p2*t)
in a generic case == a(1*e^-t/T)+b(1*e^t/T) where T= period.
i know from experience that this is case 2 as when the switch closes, it becomes a RLC circuit thus the steady state will equal 0.
is there any real stratergy to know which equation to use?