April 28

Series RLC Circuit Step Response

In this lab, we will build and test a RLC second order circuit in series.

 C = 460nF, L = 1uF, R = 1.3ohm.
a = R/2L = 5.5*10^-5 Wo = 1/sqrt(LC) = 1.459*10^-6. a > Wo.
The circuit is under damped.

To make a = Wo which is critically damped, we need to use a 3.3uF capacitor.

The three elements are connected in series in RLC order.

As expected, the voltage across the capacitor shot beyond the input voltage then oscillate down to meet the input voltage.