摘要
由555定时器构成的单稳态触发器,在低电平触发端加入宽度大于暂稳态时间的负脉冲信号时,触发器输出的波形会出现抖动。为解决这一问题,可在输入电路中加入微分电路。经Multisim8模拟验证表明:加入了微分电路的555定时器,输出状态正常。
For the monostable trigger composed of 555 timers,its output waveform will form dithering when a negative pulse signal with a width greater than the transient time is added to the low-level trigger.To solve this problem,a differential circuit can be added to the input circuit.The simulation by Multisim 8 shows that the 555 timer added the differential circuit output normally and no jitter occurs.
出处
《湖北师范大学学报（自然科学版）》
2017年第4期73-76,共4页
Journal of Hubei Normal University：Natural Science
基金
湖北师范学院校级教研项目(JH201129
ZD201121)
