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1. 发明授权

US4105935A Motor speed control apparatus 失效
标题翻译：电机速度控制装置
公开(公告)号：US4105935A
公开(公告)日：1978-08-08
申请号：US733023
申请日：1976-10-15
申请人： Kazuo Arai , Yoshiaki Igarashi , Masaki Suzuki , Nobuya Sano , Toshikazu Yosumi
发明人： Kazuo Arai , Yoshiaki Igarashi , Masaki Suzuki , Nobuya Sano , Toshikazu Yosumi
IPC分类号： H02P23/00 , H02P5/10
CPC分类号： H02P23/22 , Y10S388/915 , Y10S388/916
摘要： A motor speed control apparatus has a frequency generator for generating a frequency signal the frequency of which is proportional to the motor speed; a first pulse generator for producing a first pulse train having the same period as that of the frequency signal, each pulse of the first pulse train having a pulse width which is shorter than the period of the frequency signal and decreases as the frequency of the frequency signal increases; a second pulse generator for producing a second pulse train, the leading edges of the pulses of the second pulse train coinciding in timing with those of the first pulse train, each pulse of the second pulse train having a constant pulse width nearly the same as that of each pulse of the first pulse train obtained by the motor rotation at a predetermined speed; and a subtractor for producing a third pulse train by the subtraction of the pulses of the first pulse train and the corresponding pulses of the second pulse train, whereby there is produced a motor torque in correspondence with the third pulse train, and the motor speed can be controlled with suppressed motor vibration and excellent torque-speed characteristics of the motor.
摘要翻译：电动机速度控制装置具有用于产生其频率与电动机速度成比例的频率信号的频率发生器; 用于产生与频率信号具有相同周期的第一脉冲串的第一脉冲发生器，第一脉冲串的每个脉冲具有比频率信号的周期短的脉冲宽度，并且随着频率的频率而减小信号增加; 用于产生第二脉冲串的第二脉冲发生器，第二脉冲序列的脉冲的前沿与第一脉冲序列的脉冲的时序重合，第二脉冲序列的每个脉冲具有与之相同的恒定脉冲宽度通过电机以预定速度旋转获得的第一脉冲串的每个脉冲; 以及用于通过减去第一脉冲序列的脉冲和第二脉冲串的相应脉冲来产生第三脉冲串的减法器，由此产生与第三脉冲串对应的电动机转矩，并且电动机速度可以受电机振动抑制和电动机转矩特性优异的控制。

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