Sample gallery

Every sample is one click away. Open it in the editor, run it, or save your own modified copy.

A three-phase-to-ground fault applied to a transmission line, then cleared.

A travelling-wave (Bergeron) transmission line showing how a step propagates and reflects.

A ready-to-run NumaSim sample circuit.

A step-down (buck) DC–DC converter switching at a fixed duty cycle.

A full-bridge (Graetz) rectifier that converts AC to DC with four diodes.

A half-wave rectifier that turns an AC source into a rough DC level.

Free-running digital counters ticking at different rates, organized with subsystems.

A closed-loop PWM power controller that holds its output at a setpoint with a PID.

A closed-loop PWM power regulator with its controller wrapped in a reusable Subsystem.

Charging of a series R-C circuit — capacitor voltage rising toward the source with time constant τ = RC.

Step response of a series R-L circuit — current rising toward V/R with time constant τ = L/R.

Step response of an underdamped series R-L-C circuit — ringing and overshoot before settling.

A two-resistor voltage divider — the smallest circuit in the library and a good first run.

Sample gallery ​