Patent ID: 7339289

Claim:
A synchronous permanent magnet planar motor, comprising: a stator, comprising a planar magnet array, for generating a magnetic field whose polarity periodically alternates in space; a mover, comprising a thrust core placed opposite the planar magnet array; X-windings and Y-windings, disposed on a surface of the thrust core facing the planar magnet array; and a servo-driver, for supplying alternating electric currents to the X-windings and Y-windings such that the X-windings generate electromagnetic force in X direction in cooperation with the magnetic field, and the Y-windings generate electromagnetic force in Y direction in cooperation with the magnetic field, wherein the X-windings and the Y-windings overlap in a direction perpendicular to the planar magnet array, and are arranged on the whole surface of the thrust core facing the planar magnet array.