| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of a conventional hybrid stepping motor that the permeance strength of a basic wave component is significant when the fourth harmonic is brought to zero. SOLUTION: Pitch of small adjacent teeth formed in each stator pole of a hybrid stepping motor is differentiated at least one position as compared with others. At least one of left and right small teeth formed at different pitches has a tooth width substantially equal to the width of valley between the left and right small teeth. |
