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Method of driving a two-phase claw pole type stepping motor used in a recording disk driving device of an information storage device
Method of driving a two-phase claw pole type stepping motor used in a recording disk driving device of an information storage device
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机译:驱动信息存储装置的记录盘驱动装置中使用的两相爪极型步进电动机的方法
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摘要
There is disclosed a synchronous motor drive in which in a record disc drive of an information recording device a quantity of generated excitation noise is reduced to a small level to which a reading/writing signal is not influenced and a substantial motor generation torque is prevented from lowering. An absolute value of a maximum voltage gradient of a coil excitation voltage waveform is set to a certain value or less. The waveform alternates at a synchronous frequency which is determined by the number of poles of a rotating magnetic field produced in an air gap by a stator winding and the number of revolutions. IMAGE
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