Harness, Dickey & Pierce, P.L.C.
Resolver
Disclosed is a resolver, which includes a stator having at least one excitation coil and at least one output coil, and a rotor disposed at a center space in the stator with a predetermined gap from the stator, the rotor rotating based on a rotary shaft to change a gap permeance with respect to the stator, wherein an area ratio (Ar/As) between the stator and the rotor satisfies Equation 1 below to prevent magnetic saturation of the resolver, improve measurement precision and reduce manufacture costs without increasing a size or weight of the resolver: 0.22≤Ar/As≤0.37  Equation 1     
LS AUTOMOTIVE TECHNOLOGIES CO., LTD.
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Yeon-Muk Seong-Wook Byung-Cheol Da-Hee Won-Yong
Choi Lee Na Sim Lee