文件名称:pwm-speed-2
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PWM的一个优点是从处理器到被控系统信号都是数字形式的,无需进行数模转换。让信号保持为数字形式可将噪声影响降到最小。噪声只有在强到足以将逻辑1改变为逻辑0或将逻辑0改变为逻辑1时,也才能对数字信号产生影响。 -One advantage of PWM from processor to be control system signal is digital form, there is no need for analog-to-digital conversion. For the signal for the digital form can keep the noise influence to the minimum. Noise in strong enough to will only logic 1 change for logic 0 or will logic 0 change for logic 1, can also influence of digital signal.
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26 直流电机PWM调速.pdf
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