1、设计说明书（毕业论文） 摘摘 要要 电子技术的应用已深入到工农业经济建设，交通运输，空间技术，国防现代化，医 疗，环保，和人们日常生活的各个领域，进入新世纪后电力电子技术的应用更加广泛， 因此对电力电子技术的研究更为重要。近几年越来越多电力电子应用在国民工业中，一 些技术先进的国家，经过电力电子技术处理的电能己达到总电能的一半以上。 本文主要介绍基于单片机 8098 芯片控制的三相桥式全控整流电路的主电路和触发 电路的原理及控制电路， 软件部分由 8098高级语言编程。 具体运行由工频三相电压经变 压器后在芯片控制下在不同的时刻发出不同的脉冲信号去控制相应的 SCR可控硅整流为 直流电给负载供
2、电。此种控制方式其主要优点是输出波形稳定和可靠性高抗干扰强的特 点。触发电路结构简单，控制灵活，温度影响小，控制精度可通过软件补偿，移相范围 可任意调节等特点，目前已获得业界的广泛认可。并将在很多的工业控制中得到很好的 运用。 关键词：关键词：晶闸管 单片机 触发角 同步信号 设计说明书（毕业论文） ABSTRACT The application of electronic technology has deep into the industrial and agricultural economic development, transportation, space technolog
3、y, the modernization of national defense, medical, environmental protection, and all fields of Peoples Daily life, after entering the new century the power electronic technology application more widely, so the study of power electronic technology is more important. In recent years, more and more pow
4、er electronic application in the national industry, some technology of advanced countries, through power electronic technology processing power has reached more than half of total power. Mainly introduced in this paper based on single chip microcomputer 8098 control chip three-phase bridge type all
5、control the rectifier circuit of main circuit and the principle of trigger circuit and control circuit, the software part consists of 8098 high-level language programming. Specific operation by three-phase power frequency voltage through a transformer in under control chip at different times after d
6、ifferent pulse signal to control the corresponding SCR silicon controlled rectifier direct current to power a load. This kind of control method, its main advantages are the output waveform is stable and high reliability and strong anti-interference characteristics. Trigger circuit has simple structure, flexible control, the temperature effect is small, can through the software compensation control precision, the phase shifting range can be arbitrary adjustment etc, has won wide recogniti
