Patent ID: 7573171

Claim:
A rotation control motor comprising: a yoke; a shaft provided in the yoke; an armature having an armature core fixed on the shaft and having a plurality of teeth separated by a plurality of core slots extending along the shaft, the plurality of teeth being wound by wires that form coils; a field magnet fixed on an inner circumferential surface of the yoke; and a commutator fixed on the shaft close to the armature, the commentator having a plurality of commutator segments on an outer circumferential surface; and wherein a first wire extends from a first of the commutator segments and is wound on a first of said plurality of teeth and returns to a second of the commutator segments to form a normal coil, while a second wire extends from a third of the commutator segments and is wound on a second of said plurality of teeth of the armature and returns to the third of the commutator segments to form a brake coil acting as a short circuit.