Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Engineers · Sampling & Nyquist

Sampling & Nyquist for a power supply

Built for engineers using it for real design work. Go from concept to a running model in the browser, then scale to the cloud when needed. Simulate a power supply live below — adjust the inputs and watch it respond, right in your browser.

Sampling & NyquistLive

when digital gets it wrong

Controls

Presets

Signal frequency (Hz)

Sample rate fs (Hz)

The Nyquist–Shannon theorem says you must sample faster than twice the highest frequency. Sample too slowly and a high frequency masquerades as a low one — aliasing — which is why anti-alias filters guard every ADC. Educational tool.

▶ Run in Python

Data Inspector

Nyquist rate10 Hz

Samplingtoo slow ⚠

Apparent frequency3.0 Hz

Governing equation

f_{s} > 2 f_{m a x} : 8 Hz < 10 Hz \Rightarrow f_{alias} = 3.0 Hz

Reading this result: Undersampled: fs=8 Hz is below the 10 Hz Nyquist rate, so the 5 Hz tone masquerades as a false 3.0 Hz signal.

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

or unlock everything with Pro →

Also for:Students Researchers Educators Hobbyists & Makers K-12 Students First Responders General version →

More with Sampling & Nyquist

Sampling & Nyquist for an RLC circuit Sampling & Nyquist for a transformer Sampling & Nyquist for a DC motor Sampling & Nyquist for an op-amp filter Sampling & Nyquist for an antenna Sampling & Nyquist for a transmission line Sampling & Nyquist for a PCB trace Sampling & Nyquist for a battery pack

Frequently asked questions

Is this good for engineers?: Yes — this version of "Sampling & Nyquist for a power supply" is framed for engineers using it for real design work. Go from concept to a running model in the browser, then scale to the cloud when needed.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.