| 摘要 |
A brushless motor comprising seven or more armature windings mounted on a stator, a field magnet mounted on a rotating shaft to rotate therewith with respect to the armature windings, a plurality of semiconductor commutating devices, each being connected to one of the armature windings, and Hall sensors for detecting the polarity of magnetic fields immediately opposite the windings. Each commutating device controls the direction of the electric current to be fed to its respective armature winding, according to the magnetic polarity detected by the Hall sensors. The armature windings are connected together at one end thereof and are connected to respective commutating devices at the other ends thereof.
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