ELEC 226, Spring 2003
Prof. Rich Kozick

Finding the Step Response

  1. Analyze the circuit at t=0-: Find the capacitor voltage / inductor current.

  2. Analyze the circuit at t=0+: The capacitor voltage / inductor current is the same as at t=0-.

  3. For the desired voltages / currents in the circuit:

  4. Find the time constant, Leq/RTh or Ceq * RTh:

  5. Use the general formula for step response.