Abstract: Provided is a large output, high efficiency, single phase, multi-polar power generator, the output of which can be increased and the material of which can be reduced in amount, with a simple structure. The power generator has a rotor having m or 2·m (m: an even integer not smaller than 2) magnetic pole portions arranged so as to alternately have different polarities in a circumferential direction, and a stator having m·n (n: 3 or 4) teeth-projecting in such a direction as to be opposed to the rotor, the teeth being formed at equal spaces in a circumferential direction. The stator has m stator coils wound around the teeth at equal intervals in a circumferential direction. Each of the stator coils is wound around adjacent n?1 ones of the teeth. With this structure, the output of the power generator is increased and the material thereof is reduced in amount.

Abstract: A high-efficiency power generator has a rotor fixed on an input shaft and having a plurality of magnets in a rotor circumferential direction, and a stator which opposes the rotor in an opposing direction with a predetermined spacing therebetween and having stator coils wound around teeth which protrude in the opposing direction. The stator coils are arranged in an uneven-phase placement.