| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure the favorable drive of a motor by reducing noise. <P>SOLUTION: In the motor, magnetized parts 6, 6 of a drive magnet 5 are constituted of speed detecting magnetized parts 7, 7 and position speed detecting magnetized parts 8, 9. A position detecting conductor pattern 13 comprising a plurality of position detecting signal generating parts 17, 18, 19 and 20 each generating a position detecting signal in response to the position speed detecting magnetized part, and a speed detecting conductor pattern 12 that generates a speed detecting signal in response to the speed detecting magnetized part or the position speed detecting magnetized part are arranged at a stator 10. A control conductor 21, which generates the position detecting signal in response to the position speed detecting magnetized part and cancels at least part of the amount of an electromotive force that is not canceled due to the difference of conductor lengths when the plurality of position detecting signal generating parts respond to the speed detecting magnetized parts, is arranged at the position detecting conductor pattern. <P>COPYRIGHT: (C)2004,JPO |
