Rotation angle detection device

A rotation angle detection device comprising:

• a stator provided with an excitation winding of one phase and two-phase output windings;
• and
• a rotor having salient poles,
• wherein said stator has a plurality of teeth and said two-phase output windings are wound around said plurality of teeth such that the number of turns in each tooth of the output winding of a predetermined one phase among said two-phase output windings is N, 0, N±m1, and 0 (N and m1 are positive integers and N>m1) or this pattern of the number of turns is repeated and such that the number of turns in each tooth of the output winding of the other phase among said two-phase output windings is 0, N±m2, 0 and N (N and m2 are positive integers and N>m2) or this pattern of the number of turns is repeated.

A rotation angle detection device comprising:

• a stator provided with an excitation winding of one phase and two-phase output windings;
• and
• a rotor having salient poles,
• wherein said stator has a plurality of teeth and said two-phase output windings are wound around said plurality of teeth such that in an output winding of a predetermined one phase among said two-phase output windings, there is included at least one pattern where the number of turns in each tooth of the output winding is N±m, 0, N±m, and 0 (N and m are positive integers and N>m) and such that the number of turns in each tooth of the output winding of the other phase among said two-phase output windings is 0, N, 0 and N or this pattern of the number of turns is repeated.

A rotation angle detection device comprising:

• a stator provided with an excitation winding of one phase and two-phase output windings;
• and
• a rotor having salient poles,
• wherein said stator has a plurality of teeth and said two-phase output windings are wound around said plurality of teeth such that the number of turns in each tooth of the output winding of a predetermined one phase among said two-phase output windings is N±m, 0, N±m and 0 (N and m are positive integers and N>m) or this pattern of the number of turns is repeated and such that the number of turns in each tooth of the output winding of the other phase among said two-phase output windings is 0, N, 0 and N or this pattern of the number of turns is repeated.