Introduces the saturation function into controller, reduces the wide-range switch of control gain, ensures the stability of stator voltage.
在控制器中引入了饱和函数，降低了控制增益的大幅切换，保证了定子电压的稳定性。
Abstrct: the electrical parameters Tester through AT89C51 SCM as a core element of control by the analog switch HCF4051 constitute a range digital multimeter.
本电参数测试仪通过AT 89 C 51单片机作为核心的控制元件，由模拟开关hcf 4051构成自动量程数字万用表。
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