摘要
分析了三相次级整流点焊机主电力电路的控制过程,采用8259A中断控制器将3个同步脉冲及3个触发延迟角延时到信号等6个中断合理排队,从而解决了控制系统的时序安排问题。详细介绍了8259A与89C52单片机的接口电路及软件编程。
The main circuit of a 3-Phase DC spot welding system is set up with its working procedure realized the oretically.The queue request of6interrupt signals,which include three synchr onizing signals and three ignition impulses delayed for angle control,is implem ented by adopting programmable interrupt controller8259A,so as to arrange the time series of system control.Both the interface circuit between chip82 59A and89C52and its coding are introduced.
出处
《电焊机》
2002年第9期17-19,共3页
Electric Welding Machine
