How do I simulate an RLC circuit?

Open this page and use the live Fault Analysis tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive an RLC circuit from your own measurements.

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Fault Analysis for an RLC circuit

Simulate an RLC circuit live in your browser. This runs the real Fault Analysis solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

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Three Phase

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Three-Phase PowerLive

the grid's backbone

Controls

Speed1×

Presets

Line voltage (V)

Line current (A)

Power factor

Three-phase power delivers energy on three conductors carrying sinusoids 120° apart, so total power is constant and motors self-start. Line and phase voltages differ by √3, and real power is P = √3·V_line·I·cosφ. The power factor cosφ measures how much current actually does useful work.

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Data Inspector

Phase voltage231 V

Real power P12.5 kW

Apparent S13.9 kVA

Reactive Q6.0 kVAR

Governing equation

P = 3 V_{L} I cos φ = 3 \times 400 \times 20 \times 0.9 = 12.5 kW

Reading this result: Real power P = √3·V_line·I·cosφ = 12.5 kW, trailing the 13.9 kVA apparent power by the angle φ = 26°.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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RLC Circuit

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RLC Circuit StudioLive

series RLC step response

Controls

Apply a step voltage to a series RLC circuit and watch charge and current respond — under-, over-, or critically damped.

Presets

Resistance R

Inductance L

Capacitance C

▶ Run in Python

Data Inspector

Damping ζ0.750

Regimeunderdamped

ω₀1.000

Governing equation

1 \overset{q}{¨} + 1.5 \overset{q}{˙} + \frac{q}{1} = V_{0}, ω_{0} = \frac{1}{L C} = 1.000, ζ = \frac{R}{2} \frac{C}{L} = 0.750

Reading this result: ζ = 0.750 < 1: underdamped. With ω₀ = 1.000 rad/s the charge overshoots and rings, oscillating while it decays toward its steady value. Lower ζ means more ringing.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full Fault Analysis tool models an RLC circuit with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

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Other ways to simulate an RLC circuit

Fourier Transform for an RLC circuit Bode Plot for an RLC circuit Filter Designer for an RLC circuit PID Controller for an RLC circuit Transmission Line for an RLC circuit Op-Amp Circuits for an RLC circuit

Frequently asked questions

How do I simulate an RLC circuit?: Open this page and use the live Fault Analysis tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive an RLC circuit from your own measurements.