| 摘要 |
PURPOSE:To operate a motor in high efficiency by displacing the mounting position of a position detecting sensor at the prescribed angle of an electric angle at the rotating angle as a center. CONSTITUTION:Since a rotor 5 is stopped at the balanced position of attracting forces of permanent magnets 3, 4 when a motor is operated, the output of a comparator becomes H level voltage on the basis of the output of a position detecting sensor 9. Thus, a transistor is turned ON, a current is flowed from a terminal P of a stator winding 8 to S to generate a pole in a core, and the rotor 5 starts rotating counterclockwise. Thereafter, the pole is reversely rotated at every 180 deg., and counterclockwise rotation continued by the inertia is maintained. Since the mounting position of the sensor 9 is displaced at the prescribed angle alpha of an electric angle with a rotational shaft 1 as a center in response to a load, an efficient operation can be provided. |
