Transfer function RC - circuit

Hi!
Suppose R = C = 1 then the transfer function from the input voltage to the voltage across the capacitor is 1/ (s+1). So Vc(S) / V(S) = 1/(s+1). Getting back to time-domain: Vc(t) = V(t) * e^-t. What's wrong here? It should have been V(t) ( 1 - e^-t ).
The rising function is step( transfer_function ) and the decaying one is ezplot ( ilaplace ( transfer_function )). Why are these two not the same?
Thank you!

1 Commento

What does the circuit look like?
Where are you measuring the output voltage?

Accedi per commentare.

Risposte (1)

Alexandru Miculescu
Alexandru Miculescu il 4 Apr 2015

0 voti

Problem solved! It had to been multiplied with 1/s (step response) then converted to time domain. Thank you anyway!!!

Categorie

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by