| 摘要 |
Disclosed herein is a spindle motor. The spindle motor uses a general (non neodymium) permanent magnet rather than a neodymium magnet as a permanent magnet and compensates for a reduced counter electromotive force (B-EMF) value by allowing the center of a connection part formed in a round shape between poles around which coils are wound to be different from that of a core to increase a coil inductance value, thereby making it possible to easily sense and control a rotation state of the spindle motor.
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