基于可编程控制器单稳态触发器的设计与分析  

Design and analysis based on programmable controller and single-shot

作　　者：徐良雄[1] 

机构地区：[1]武汉交通职业学院机电工程系,湖北武汉430065

出　　处：《电子设计工程》2011年第19期85-87,共3页Electronic Design Engineering

摘　　要：基于数字电路和通信电路中,常常需要单稳态触发器,特别是要求延时功能时间可以调节的单稳态触发器,采用可编程控制器的这一特殊方法来设计这一触发器,通过调整可编程控制器构成的单稳态触发器的时间常数,巧妙地完成了这一功能。该设计具有设计简单,完成方便,延迟精度高,延迟范围不受限制,延迟时间用软件就可调试,不需要对电路重新组装的特点。Based on digital circuits and communication circuits, often requires one-shot, in particular that the time delay function can be adjusted single-shot, we use this particular method of programmable controllers to the design of this flip-flop, by adjusting the composition of the programmable controller time constant one-shot, cleverly accomplished this function. The design has a simple design, easy to complete, high precision delay, the delay range is not restricted, the delay time can be used to debug software does not require re-assembly of the circuit characteristics.

关 键 词：单稳态触发器 可编程控制器 程序设计 延时功能可调 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]