| 摘要 |
A stepper motor is initialized so that the exciting signal is applied to coils with the step shifted by half of one electric cycle from the rebounding step being synchronized with the timing when the stopper piece is brought into contact with a fixed stopper. The rebounding step, in which the rotor of the stepper motor reverses its rotating direction, can be easily detected. If the rebounding step can be detected, the position for initializing can be easily defined in the angle shifting manner as described above.
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