555IC应用的一个新思路

从555IC的基本逻辑功能和基本特性出发,论述了把555IC定时器用作门电路的理论依据和电路接线方案,分析了该门的电压传输特性、输出特性、负载能力等。该门具有一般门不可比拟的特色和突出特点:电路简单,使用灵活方便;该门电路的负载能力比普通门提高了几十倍甚至上百倍,解决了普通门阈值电压不便调节以及输出电平转换难的问题。

A New Consideration for 555IC Application

The article,from the basic logic function and basic trait,discusses the principle and circuit of 555IC timer as gate circuit,analyses the properties of this gate: property of voltage transfering, output trait,and load faculty.This gate possesses features and advantages which cannot be assimilated by common gates:circuit simpleness,agility and convenience.Load ability of the circuit for the gate has been enhanced;and the problem of unsuitability for adjustment in general gate shreshold voltage and difficulty in output level transforrnation are solved.