摘要
基于DSP-MCU实现焊接电源系统数字化控制的设计采用TMS320F240数字信号处理器和80C196KC单片机,设计成实现多功能IGBT逆变焊接电源双机控制系统。其中,TMS320F240主要用于焊接参数的采样、控制算法的运算,80C196KC用于完成人机接口的功能,包括键盘和显示,与上位机的通信等。设计中人机界面采用液晶显示。系统设计的关键是双机之间的通信技术,为了确保通信的可靠及快速性采用双口RAM(IDT7005)来完成。数字PWM控制单元采用复杂可编程逻辑器件(CPLD)完成,整个系统中所有逻辑控制也由此芯片来完成,设计完成的DSP-MCU双机控制系统实现了焊机的多功能全数字化控制。
A two-processing controlling digital inverter welding power system was designed based on digital signal processor (DSP) and micro-control unit (MCU) and its multi-functions were achieved. DSP (TMS320F240) was mainly used in sampling welding parameters and calculating control algorithm, whereas MCU (80C196KC) was used in implementing interfaces including keyboard, display and communication. Liquid crystal display is adopted for man-machine interaction. The key point of the design was the communication between DSP and MCU, therefore, a dual port RAM (IDT7005) was adopted to ensure its reliability and rapidity. Complex programmable logic device was used to realize digital pulsed width modulation. The results indicates that fully digital controlling of multi-function welding machine was realized through DSP-MCU controlling system.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2005年第3期17-20,24,共5页
Transactions of The China Welding Institution
基金
甘肃省科技攻关项目(GS035-A52-007-01)
甘肃省自然基金项目(ZS032-B2500001)
关键词
脉宽调制
复杂可编程逻辑器件
数字信号处理器
单片机
数字化焊机
Computer control systems
Computer hardware
Computer programming
Data communication systems
Digital signal processing
Electric power systems
Human computer interaction
Personal computers
Pulse width modulation
