Practical Electronics/Series RLC

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A circuit of 3 components connected in series

RLC series circuit.png

Circuit's response[edit]

Equilibrium Response[edit]

At Equilibrium, the sum of all volatages equal to zero

The equation above can be written as below


With

Roots of 2nd ordered differential equation above

Resonance Response[edit]

The total impedance of the circuit

At the total impedance of the circuit is Z = R . Therefore, current is equal to
At , Capacitor opens circuit . Therefore, current is equal to zero
At , Inductor opens circuit . Therefore, current is equal to zero