基于AT89C51单片机的全数字触发器的设计  

Design of all-digital trigger based on AT89C51 microcontroller

作　　者：梁秀霞[1] 李伟斌[1] 申玏[1] 

机构地区：[1]河北工业大学控制科学与工程学院,天津300130

出　　处：《河北工业大学学报》2011年第2期25-28,共4页Journal of Hebei University of Technology

摘　　要：目前三相全控桥式整流系统在工业中应用非常广泛,尤其在直流调速中.脉冲触发器是整流系统的控制核心,一直以来触发器大多采用模拟电路为主.介绍一种采用单片机AT89C51为控制核心的全数字触发器,其硬件电路及控制程序简单,输出六脉冲均匀整齐,并且控制精度高.文中详细介绍了全数字触发器的硬件设计及软件流程图,并通过试验利用示波器观察到了整流输出电压的波形,验证了方案的可行性.长期运行以来,该脉冲触发器的性能令人满意.The present system of three-phase fully controlled bridge rectifier was widely used in industry,especially in the DC speed control system.Pulse rectifier system control trigger was the core of a trigger,it had been mostly dominated by analog circuits.This paper describes a microcomputer AT89C51 used for the control core of the digital pulse trigger,the hardware circuits and control program was simple,neat uniform output 6 pulses and high precision.This paper des-cribes the hardware design and software flow chart of the all-digital trigger,and the experiment using an oscilloscope to the rectifier output voltage waveform,verifies the feasibility.Since the long run,the capability of the trigger pulse satis performs well.

关 键 词：单片机 数字触发器 整流 硬件电路 软件流程 

分 类 号：TM921.51[电气工程—电力电子与电力传动]