Saturday, September 26, 2015

First Order Circuits: Source Free RC/RL Circuit

First Order Circuits: Source Free RC/RL Circuit

    A first-order circuit can only contain one energy storage element (a capacitor or an inductor). The circuit will also contain resistance.
So there are two types of first-order circuits:
RC circuit
RL circuit

RC

Formula for V voltage response of the RC circuit is an exponential decay of the initial voltage. Vo at time t=0
 
RC Time constant


RL


Formula for I current response of the RL circuit is an exponential decay of the initial current. Io at time to=0

RL Time constant







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