Lecture 10: RL & RC Circuits Nilsson 7.1 – 7.4

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Presentation transcript:

Lecture 10: RL & RC Circuits Nilsson 7.1 – 7.4 ENG17 : Circuits I Spring 2015 April 30, 2015

Recap – Inductors / Capacitors

Overview Natural Response Step Response General Solution RL Circuits RC Circuits Step Response General Solution

Natural Response Currents and voltages that arise from an inductor or capacitor immediately after being disconnected from a DC (direct current) source.

Current in RL Circuit After Open Switch

Time Constant

Voltage in RC Circuit After Switching

Overview Natural Response Step Response General Solution RL Circuits RC Circuits Step Response General Solution

Step Response Currents and voltages that arise when energy is being acquired by an inductor or capacitor due to the sudden application of a dc voltage or current source.

Step Response in RL Circuit

Step Response in RC Circuit

Overview Natural Response Step Response General Solution RL Circuits RC Circuits Step Response General Solution

Generalized Solution

RL Circuit Example

RC Circuit Example

Example - RL Find i(t), v(t)

Example - RC Find vo(t), io(t)

Recap Natural Response Step Response General Solution RL Circuits RC Circuits Step Response General Solution