专利名称：A closed-loop method and apparatus for
controlling acceleration and velocity of astepper motor
发明人：Callaway, Robert P.申请号：EP93301644.6申请日：19930304公开号：EP0559464B1公开日：19961218
摘要：A closed-loop method and apparatus for controlling acceleration and velocityof a stepper motor (26) in which a motor shaft encoder (38) is used to generate a signalproportional to shaft position. This signal is subtracted from the motor input signal toproduce an error signal which is compared with a reference value. When the error is equalto the reference value the motor is stepped again. Between each step, the referencevalue is decreased if motor velocity is too high or increased if the motor velocity is toolow.
申请人：HEWLETT PACKARD CO
地址：US
国籍：US
代理机构：Colgan, Stephen James
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