Interactive engineering lab

Component library

Built for students, teachers and the curious. Open a component, change its real electrical parameters, and watch the 3D model and characteristic curves respond as you go.

Component library

Electrical machines

Convert electrical energy and mechanical motion.

M3∿
Electrical machines

3-phase induction

Explore how a rotating magnetic field produces torque in a squirrel-cage rotor.

Open simulator
M=+
Electrical machines

Brushed DC

Explore how brushes and a commutator keep the armature torque rotating in one direction.

Open simulator
M3∿
Electrical machines

Brushless DC

Observe how the inverter energizes three-phase stator windings in sequence to rotate a permanent-magnet rotor.

Open simulator
M3∿PM
Electrical machines

Synchronous (PMSM)

See why a synchronous rotor locks exactly to the rotating field — and what happens when the load pulls it out of step.

Open simulator
MSM
Electrical machines

Stepper

Watch the rotor advance one discrete step per pulse — and see what happens when the pulse rate outruns the available torque.

Open simulator
M3∿G
Electrical machines

Servo

See how a closed loop holds the rotor on the commanded speed — and how the following error grows with speed until you raise the loop gain.

Open simulator