Patent ID: 6998747

Claim:
A multiplex resolver comprising: m resolver units disposed in tandem each comprising a rotor and a stator, where m is an integer not less than 2, each stator having a stator yoke, a plurality of stator magnetic poles projecting from the yoke, and excitation and output windings being wound around the stator magnetic poles, each rotor having n salient poles wherein n is an integer of not less than 1, and the stator yokes of the resolver units being connected together in juxtaposition such that the stator magnetic poles and windings of the stator of one resolver unit are circumferentially staggered from the stator magnetic poles and windings of the stator of another resolver unit, as viewed in the axial direction, wherein stator magnetic pole structures, output winding structures, and rotor structures of the resolver units are determined such that the output windings of one resolver unit and those of another resolver unit output substantially identical output signals, and wherein the stator yokes are annular yokes having a common axis, the pluralities of stator magnetic poles project radially inward from the yokes, and projecting portions of the windings on the stator magnetic poles protrude into slots formed between the stator magnetic poles of adjoining annular yokes.