Magnetic position detecting apparatus

A position detecting apparatus comprising:

• first and second main circuits being arranged to be adjacent to each other, being displaced to be opposite to a magnetized surface where different magnetic poles are alternatively arrayed in one direction and being placed in a direction perpendicular to a pole array direction;
• each main circuit including:
• a magnetic resistance circuit having multiple magnetic resistance elements that output current according to magnetic field intensity of the magnetized surface;
• a power supply terminal provided in each magnetic resistance circuit;
• and
• an output terminal;
• wherein the multiple magnetic resistance elements are connected in series in the magnetic resistance circuit of each main circuit and arranged to be parallel to one another along a current path of each magnetic resistance element;
• and
• wherein the magnetic resistance circuit of the first main circuit includes:
• a reference magnetic resistance element;
• an even harmonic correction magnetic resistance element, being placed at a position shifted by (1/4)λ or (3/4)λ from the reference magnetic resistance element, with respect to a reference wave;
• a third harmonic correction magnetic resistance element, being placed at a position shifted by (1/6)λ from the reference magnetic resistance element, with respect to a reference wave;
• and
• wherein the magnetic resistance circuit of the second main circuit includes:
• a reference magnetic resistance element;
• a fifth harmonic correction magnetic resistance element, being placed at a position shifted by (1/10)λ from the adjacent magnetic resistance element, with respect to a reference wave;
• a fifth harmonic correction magnetic resistance element, being placed at a position shifted by (4/15)λ from the reference magnetic resistance element, with respect to a third harmonic wave.