By adjusting the driving pulse increment, the bright dark conversion to maximize the number of dark and light switching frequency optimization goal of homogenization in per unit time were achieved.

通过调整驱动脉冲增量，实现了单位时间亮暗转换次数最大化和亮暗转换频率均匀化的优化目标。

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The closed circuit control system with frequency conversion for adjusting speed controlled by industrial computer is introduced with its control function and realization.

文章介绍了一种由工业计算机控制的变频调速闭环控制系统，同时介绍了该系统的控制功能和电气实现。

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The AC servo system of FANUC 11 series is a AC-DC-AC conversion frequency speed adjusting system, which use PWM as the speed-adjusting control method.

FANUC一11型交一直一交频调速系统，调速的控制方法为脉冲宽度调制(pwm)法。

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