Скачать или смотреть Radial Dual-Stator Alternator, upgraded, short demo

Previously described project has received a slight performance upgrade by increasing the number of magnets (neodymium 3/4" discs) from 5-per-stack to 6-per-stack. In addition the outer layer of magnets was allowed to protrude slightly from the surface of the cylindrical rotor, in order to narrow the gap between the magnets and the steel cores of the pickup coils.

Previous no-load performance stats were 35V, 1.3A.
Upgraded no-load performance stats = 40V, 1.5A

Demo shows a 12V automotive incandescent bulb being illuminated by the output from the device, and illustrates the difference in cranking resistance between no-load vs. electrical-load scenarios. That is, in the absence of electrical load there is very little resistance on the crank arm of the gear drive; while the addition of electrical load markedly increases the resistance on the drive handle. This effect is maximum when the POS & NEG leads are simply shorted out by a jumper wire.

Current output in a no-load scenario is demonstrated as 1.5A (1500 mA) as registered on a digital multimeter. As mentioned, this translates to a sustainable 1.0A of charging current when charging a 12V battery.

Finally it was demonstrated that a single crank of the drive handle is sufficient to charge the capacitors such that they will discharge with a visible and audible spark when the leads are shorted out. The two diode bridges, connected in parallel, each have a separate capacitor of 470 uF (micro-Farad) rating.