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Use case · powered by Class-D Amp

Class-D Amp for a transmission line

Simulate a transmission line live in your browser. This runs the real Class-D Amp solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

Sampling & AliasingLive

Controls

Presets

To capture a signal faithfully you must sample above twice its highest frequency — the Nyquist rate. Sample too slowly and a high frequency masquerades as a lower one: aliasing. Push the signal frequency above half the sample rate and watch the reconstructed wave collapse to a false, slower tone.

▶ Run in Python

Data Inspector

Nyquist frequency10.0 Hz
Statusproperly sampled
Apparent frequency3.0 Hz

Governing equation

Reading this result: Sampling at 20 Hz puts the Nyquist limit at 10.0 Hz. The 3 Hz signal sits below that, so it is captured faithfully and reconstructs at its true frequency.

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

2

Filter Designer

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Analog Filter DesignerLive

Controls

Presets

Passive filters shape a signal's frequency content with resistors, capacitors, and inductors. An RC low-pass or high-pass has a cutoff at 1/(2πRC) where the response drops 3 dB; an RLC bandpass resonates at 1/(2π√(LC)) with sharpness set by its quality factor Q.

▶ Run in Python

Data Inspector

Cutoff fc1.6 kHz
Resonance f₀5.0 kHz
Quality factor Q0.32

Governing equation

Reading this result: Low-pass: signals below the 1.6 kHz corner pass, above it they roll off at 20 dB/decade, and the response is exactly 3 dB down right at the corner.

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

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About this simulation

The full Class-D Amp tool models a transmission line 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.

More you can do with Class-D Amp

Other ways to simulate a transmission line

Frequently asked questions

How do I simulate a transmission line?
Open this page and use the live Class-D Amp 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 a transmission line from your own measurements.