Multisim13仿真软件在触发器中的应用分析  

Application analysis of Multisim13 simulation software in flip flop

作　　者：张学文 司佑全 ZHANG Xue-wen;SI You-quan(College of Physics and Electronic Science, Hubei Normal University,Huangshi 435002,China)

机构地区：[1]湖北师范大学物理与电子科学学院,湖北黄石435002

出　　处：《湖北师范大学学报（自然科学版）》2021年第3期93-98,共6页Journal of Hubei Normal University：Natural Science

基　　金：校企合作项目(2017)基于A64和Android的PLC组态系统。

摘　　要：针对基本RS触发器、同步RS触发器、主从RS触发器、主从JK触发器四种电路,通过观察Multisim13仿真软件中四踪示波器显示的输入信号及输出信号的波形特征,对其时序波形发生“不确定状态”进行了分析,得到如下结果:对于前三种电路(基本RS触发器、同步RS触发器、主从RS触发器),由于触发器特性方程存在约束条件,若当输入信号不满足其约束条件时,则输出端可能出现“不确定状态”。而对于JK触发器电路来说,由于触发器特性方程不存在约束条件,因此,输出端不会出现“不确定状态”。For the four circuits of basic RS trigger,synchronous RS trigger,master-slave RS trigger,and master-slave JK trigger,by observing the waveform characteristics of the input signal and output signal displayed by the four-track oscilloscope in Multisim13 simulation software,the authors analysis“uncertain state”of the timing waveform,and the following results is obtained:For the first three circuits(basic RS flip-flop,synchronous RS flip-flop,master-slave RS flip-flop),due to the constraints of the trigger characteristic equation,when the input signal does not meet its constraints,the output terminal may appear in an“uncertain state”.As for the JK flip-flop circuit,since there are no constraints on the flip-flop characteristic equation,there will be no“uncertain state”at the output.

关 键 词：不确定状态 RS触发器 主从JK触发器 仿真分析 

分 类 号：TN79[电子电信—电路与系统]