| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor driver equipped with a position detecting means that is hard to be affected by the error against a target adjustment value. <P>SOLUTION: The motor comprises: a rotor comprising a magnet whose outer peripheral surface is divided in a plurality of parts to be magnetized; a first magnetic pole part and second magnetic pole part which extend opposite to the magnetized surface of the magnet; a first coil and second coil for exciting the first magnetic pole part; a position adjusting means for arranging the first magnetic pole part and the second magnetic pole part in a specified phase; and a magnetic detection means which is movably arranged at the position adjusting means for detecting the magnitude of the magnetic field generated at the magnet. The inclination of border line of the magnetic pole of the magnet relative to the rotating shaft of the rotor is so configured as to be different from the inclination in movable direction of the magnetic detection means relative to the rotating shaft of the rotor. <P>COPYRIGHT: (C)2009,JPO&INPIT |
