Pulse Motor FAQ

A pulse motor is an electric motor driven by timed electrical pulses rather than continuous current. Brief bursts through a coil attract or repel permanent magnets on a spinning rotor, creating rotation with strong educational and experimental value.

A trigger sensor (Hall effect, reed switch, or feedback coil) detects an approaching rotor magnet and fires a transistor. The transistor pulses current through a coil, kicking the magnet, then shuts off so the rotor can coast to the next magnet. Timing is everything.

Not exactly. A Bedini motor is a famous subtype of pulse motor (often the SSG circuit with bifilar coils). All Bedini motors are pulse motors; not all pulse motors are Bedini motors.

With a back-EMF recovery circuit, a secondary battery can collect energy from the coil collapse spike. This improves system bookkeeping — it does not create energy from nothing. Measure carefully; surface charge can mislead.

Back EMF is the reverse voltage spike when coil current is interrupted. Unmanaged, it can destroy transistors. Managed with recovery diodes, it becomes captured energy and a core teaching topic of the hobby.

A basic build typically costs $20–$60 depending on what you already own. Magnets, magnet wire, a transistor, and a 12V source are the main expenses.

Enamel magnet wire. 20AWG is a great first choice. 16AWG hits hard with fewer turns. 22–26AWG enables more turns and interesting pickup/BEMF experiments. Litz wire helps on higher-frequency pickups.

No. Overunity claims don't survive careful measurement. Pulse motors are fascinating because of efficiency tricks, timing, and electromagnetism — not because they break physics.

Papa Bale is a self-taught DIY experimenter and YouTube creator (@MPHJR) documenting pulse motors, magnetic levitation, and workshop experiments with no gatekeeping.

A Hall- or reed-triggered single-coil motor for clarity, or a Bedini SSG if you want the largest community documentation. Either can be weekend-scale under $50.

TIP31C for first experiments, 2N3055 for classic SSG power, MOSFETs for fast high-RPM switching. Always use a heatsink.

Yes. Breadboards, screw terminals, and clip leads work for learning. Permanent soldered builds come later.

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