RLC Circuit Response Solver in MATLAB

This MATLAB script simulates and plots the current response of an RLC series circuit for a step input

This MATLAB script analyzes the step response of a Series RLC Circuit using differential equations and plots both the current (i(t)) and its rate of change (di/dt) over time.

It helps students understand how resistor (R), inductor (L), and capacitor (C) values affect transient and steady-state behavior in second-order electrical systems.

Features:

Solves the RLC differential equation numerically.

Plots current and its derivative versus time.

Demonstrates underdamped, overdamped, and critically damped cases by changing R, L, and C values.

Useful for Electrical Engineering students studying network theory, transients, or control systems.

Output:

The script generates a graph showing:

Current i(t) — blue line

Derivative di/dt — red line