Laplace Transform (conceptual)

jsbeckton

Junior Member
Joined
Oct 24, 2005
Messages
174
I understand how to take a system, develop the differential equations, convert to laplace ....... take the inverse lapalce transform to get back to the time domain but am having a hard time grasping the end result.

Say I have a laplace transform of Y(s)/U(s) and that U(s) is a step function. I then multiply whatever the laplace was by U(s) "the step", simplify, and then take the inverse laplace to have Y(t). What i don't grasp is where does the actual value of U come into play? Say it was 1500 volts, all I have done is use 1/s and then i get a time function back. How do I determine the systems response to the 1500 volts?

Any help is greatly appreciated.

Thanks
 
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