Exp 3. Transient Response of Series RLC Circuit

Concept : To demonstrate the transient response on a series RLC circuit

 

Explanation:

The transient response of a series RLC circuit refers to how the circuit responds to a sudden change in voltage or current, such as when a switch is closed or opened, causing the circuit to respond dynamically before reaching a steady-state condition. A series RLC circuit consists of a resistor (R), inductor (L), and capacitor (C) all connected in series.

1. Resistor (R): Opposes the flow of current, causing energy dissipation in the form of heat. Its effect is characterized by the resistance R.

2. Inductor (L): Opposes changes in current by storing energy in a magnetic field. Its effect is characterized by inductance L.

3. Capacitor (C): Opposes changes in voltage by storing energy in an electric field. Its effect is characterized by capacitance C.

      For a series RLC circuit:

 

Simulation Mode: Transient Analysis

Simulation Parameters: .tran 0.1m 100m 0 UIC

 

Simulation Type	Start Time(sec)	Stop Time(sec)	Step Time(sec)
.tran	0	100m	0.1m

 

Reference Netlist:

* Transient Response of Series RLC Circuit

 

R1 COM.1 COM.2 100 

C1 COM.3 COM.1 1m 

L2 COM.3 0 1 

V1 COM.2 0 DC 5 

 

.tran 0.1m 100m 0 UIC

 

.control 

run 

plot all 

.endc 

.end

 

Reference Circuit Schematic:

Make the circuit diagram with the exact pin-to-pin connection as shown below to practice. This will help you to complete the experiment successfully.

 

Reference Circuit Details:

Input=COM.2

 

Reference Output:

After the simulation is done, the following output graph appears at the screen showing the voltages and currents across all the nodes.

 

Conclusion:
Thus, we have observed the transient response of a series RLC circuit to an unit impulse input.

 

Assignment:

Change the components, sources and analysis values and get different results. Please verify the theoretical and practical results.

 

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