Have you considered rectifying each phase seperately? Like 3 single phase generators in one stator. I have a feeling with 4 ohms per phase, and 7.2V at low RPMs, it could work out much better.
I also have a feeling the blades might be too long. Shorter blades of the same design will run faster.
Only 16 (Only 16!) more hard drives will give enough magnets to increase the output, stacking them 3 thick on both rotors. Or 8 hard drives and place all the additionial magnets on the same rotor. The air gap to magnet ratio will be better.
G-[ Parent ]
Thanks Francisco [ Parent ]
gurd, i asked this question in hikers post. what about a coil for each pole (single phase) but three layers thick,= three phase?[ Parent ]
The capacitors are necessary for proper operation. Without them you will have the three phases adding, which gives zero voltage at all times. System ground would normally be at the bottom. The resistor represents the load. Without the capacitors the mid connections go nowhere. I feel it's important for people to understand that the dc voltage has to appear across something in order for it to be stacked with another, so I dug up the schematic. Sorry about the size. I'm beginning to think that this stuff should be put in a FAQ for easy reference.GeoM[ Parent ]
Just sounds to me like, was it 7.2V(?), at low speed by hand, combined with 4 ohms per phase, that if it was wired in star it might be a better at higher voltages than 12V. I could be way off, it's all based on reverse enginering of my failures.
