Objectives:
1. To determine the Transfer Function of 1st order system.
2. To represent Transfer Function in MATLAB.
3. To observe the time response of those 1st order systems.
4. Determine the transient response of those systems.
Theory:
First Order Circuits:
RL and RC circuits are called first order circuits because their voltage and currents are
described by first order differential equations.
Time response of 1st order circuits:
•A transient period which occurs immediately the input changes and during
which the system seems to be dominated by something other than the input.
•A steady state condition which is reached after the transient has died out. The
system seems to have settled down to the influence of the input.
The transient situation is produced by elements within the plant which cannot respond
instantly. Capacitance in an electrical system that store energy so it takes time to
change the voltage across a capacitor.
