EE 212 Lab

Prelab 3: Square Waves and RC Time Constants

For the RC circuit of figure 1 in Lab 3:

  1. What is the theoretical time constant &tau ("tau") for the circuit?

  2. Sketch one period of the output waveform on top of the input square wave with period T shown, where
  3. Calculate the relationship between the 10% to 90% rise time (as shown in the figure below), and the time constant &tau for the circuit's step response. Hint: you'll need to solve for the step response of the circuit.