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Originally Posted by maxSaleen
Maybe at some stage the AC current in Iwakis gets transformed into DC? Such circuitry would be quite simple (a diode and some caps).
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Iwaki (several, not all) uses
assynchronous AC motors with several windings to distribute magnetic field and to generate direction. This design limits speed by main frequency and has a delay that makes a "slide" from that main frequency.
Usually to get rotation speed higher than main frequency mfgs use brushed motors (hairdryer, kitchen equipment, etc). But this construction generates electrical noise so it is not suitable for computers circuit.
DC brushless motor is the answer to get higher and controlled speed without electrical interference.
....once more, excuse english errors....