摘要
555定时器的外接控制电压往往不是一个定值.给出了求555定时器外接控制电压的一般公式,使得在555定时器组成的各种不同电路中求控制电压的繁琐过程变得十分简单.它对555定时器应用电路工作原理的分析有着十分重要的使用价值.最后通过分析一个实例,展示了这个公式的实用性.
The control voltage of 555 Timer usually is not fixed. This paper presents the formula for evaluating the control voltage of 555 Timer. This makes it much easier to evaluate the control voltage of the electric circuit made up of 555 Timer. It is of great value in explaining the 555 Timer circuit's working principle. The function of the formula is displayed with an example.
