| 摘要 |
A rotary position detector comprising a rotor rotatable in synchronism with a motor and a rotary position detecting portion for generating a voltage signal corresponding to an angular position detectable as a magnetic flux change with rotation of the rotor. The detecting portion is disposed with respect to the rotor within a range of an angle of 2 pi/n, where pi is the electrical phase angle (180°) and n is the number of pairs of poles of the motor. Further, a motor provided with the same rotary position detector has a motor drive control circuit assembled together with the detecting portion at the same place on the motor. The rotary position detector is easy to manufacture, small and light, easy to mount on a motor and easy to connect with a motor drive control printed circuit.
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