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US4280084A Method of and apparatus for operating stepping motors 失效
操作步进电机的方法和装置

Method of and apparatus for operating stepping motors
Abstract:
A method and apparatus for driving a stepping motor by angularly displacing the revolvable magnetic field with respect to the rotor by a first displacement angle in a given direction of revolution and then revolving the revolvable magnetic field, preferably with linearly increasing velocity and therefore maintaining constant displacement angle between the field and the rotor until the rotor rotates at a second velocity.
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