Patent ID: 6483212
Filing Date: 2002-11-19
Classification: H02K

Abstract:
A reluctance-type motor comprising:a stator having a plurality of salient stator-poles; a rotor having a plurality of salient rotor-poles, said salient stator-poles and said salient rotor-poles formed of laminated sheets of magnetic material, one of said stator-poles and said rotor-poles having a plurality of slits, each of which has a width that is equal to or larger than one fifth of the thickness of each of said laminated sheets; a plurality of phase-coils mounted on said salient stator-poles; a driver circuit for supplying a drive current to said phase-coils; and means for detecting a relative position of said salient rotor-poles and said phase-coils; wherein said driver circuit starts to supply said drive current to one of said plurality of phase-coils at a set angle before said salient rotor-poles and those of said salient stator-poles that have said one of said phase-coils mounted thereon come across each other so that said drive current is fully supplied while an inductance of said one of said phase-coils is approximately zero.