Patent ID: 7015615

Claim:
A two-phase switched reluctance machine (TPSRM), comprising: a stator having a plurality of poles and a ferromagnetic or iron back material; and a rotor having a plurality of poles and a ferromagnetic or iron back material, wherein: current flowing through coils wound around a first set of the plurality of stator poles induces a flux flow through the first set of stator poles and portions of the stator back material during a first excitation phase, current flowing through coils wound around a second set of the plurality of stator poles induces a flux flow through the second set of stator poles and portions of the stator back material during a second excitation phase, and the numbers of stator and rotor poles are selected such that substantially no flux reversal occurs in any part of the stator back material as a result of transitioning between the first and second excitation phases.