| 摘要 |
PROBLEM TO BE SOLVED: To provide a device having a plurality of sets of magnetic sensors at a permanent magnet motor capable of sensing a rotor magnet and forming a variable conductive angle at an exciting current of a stator coil. SOLUTION: This motor includes a permanent magnet rotor section, the permanent magnet motor for generating armature reaction by making a tubular magnet react to a stator exciting coil and introducing magnetism to rotate, a plurality of sets of the magnetic sensors sensing and generating a plurality of magnetism sensing signals reacting to the rotor magnet, and forming respective kinds of exciting current switching angles of the stator coil reacting for conversion of a rotating pole of the rotor magnet based on the mentioned signals, and a plurality of sets of the magnetic sensors positioned at all magnetic sensor electric circuit substrates, and a magnetism sensing signal selecting electric circuit where all of sensing signals of a plurality of sets of the magnetic sensors are inputted into an input end of a switching means, an output end of the switching means permits only output of signals of one set of the magnetic sensors, and the outputted sensing signals excite the motor stator coil and the rotor magnet through the motor driving electric circuit to cause armature reaction for operation.
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