摘要
基于探索555施密特触发器电路构成及功能扩展的目的,分析了555定时器的功能,发现可用555定时器构成输出信号uO与输入信号uI相位相同的同相位输出的施密特触发器。介绍了电路构成原理、给出了电路参数的计算公式,全面、定量地描述了电路的工作过程。所述方法的创新点是,发现了555施密特触发器新的构成方式,将有利于系统地研究555施密特触发器电路的构成及设计方法。用Multisim仿真软件对几种类型的同相位输出555施密特触发器进行了仿真验证,结论是证明了所述方法的正确性。
To explore the structure and function of the 555 Schmidt trigger circuit based on the analysis of expansion, the 555 timer 555 timer function, can be found a Schmidt trigger phase output signal uO and uI of the same input signal phase. Introduces the circuit principle, and gives the calculation formula of circuit parameters, comprehensive, quantitative description of the working process of the electric circuit. The innovation of the method is, found 555 Schmidt trigger in new ways, will be conducive to the system structure and design method of 555 Schmidt trigger circuit. For the simulation of several types of phase with the output of 555 Schmidt trigger with Multisim simulation software, the conclusion is proves the correctness of the method.
出处
《电子设计工程》
2015年第8期53-55,共3页
Electronic Design Engineering
基金
辽宁省社科联2014年度辽宁经济社会发展立项课题(2014LSLKTDGLX-02)
渤海大学2013年度教学改革课题立项(JG13YB005)
