Miniature reversible motor

摘要

A miniature reversible motor comprising a rotor having a plurality of magnetic pole pairs, and a stator having a pole face opposite the periphery of the rotor. A magnetic member of high permeability magnetic material is positioned proximate the periphery of the rotor and magnetically couples with the magnetic poles of the rotor for determining a direction of rotation of the rotor. A positioning mechanism is operable for changing the position of the magnetic member relative to the periphery of the rotor to change the direction of rotation of the rotor determined by the relative position of the magnetic member and the periphery of the rotor.