Patent ID: 8304952

Claim:
An electric motor system, comprising: a rotor; a spindle to which the rotor is attached; at least two permanent magnets attached to an outer edge of the rotor, the at least two permanent magnets positioned adjacent to each other such that their polarities are opposed; an electromagnetic coil with a soft ferromagnetic core, the electromagnetic coil disposed proximate to the rotor in a manner so that the at least two permanent magnets are positioned on the rotor symmetrically arranged with respect to the electromagnetic coil and soft ferromagnetic core and allowed to rotate about an axis which is determined by the spindle to which the rotor is attached, the electromagnetic coil with soft ferromagnetic core positioned such that as the rotor rotates the at least two permanent magnets are at the same angular displacement from the fixed coil and soft ferromagnetic core; the motor system having two defined states of magnetic interaction which are switched in a defined sequence, including a first state that takes place when there is no voltage applied across the electromagnetic coil, and a second state that takes place when a voltage is applied across the electromagnetic coil to produce a current to saturate the ferrite core of the electromagnetic coil, wherein, due to the net magnetization vectors of the soft ferromagnetic core in its saturated magnetization of the second state being lower than the net magnetization vectors of the soft ferromagnetic core in the first state, there is a lower net torque acting on the rotor.