基于ARM7数字化多功能焊接电源的控制实现  

Control realization of digital multifunction welding power source based on ARM7

作　　者：张栋[1] 王振民[2] 李晋[2] 霍明[1] 叶慧[1] 王志强[1] 

机构地区：[1]华南理工大学电力学院,广东广州510640 [2]华南理工大学机械与汽车工程学院,广东广州510640

出　　处：《电焊机》2009年第7期69-72,共4页Electric Welding Machine

基　　金：高等学校博士学科点专项科研基金资助项目(200805611086);国家自然科学基金项目(50805051);广东省科技计划项目(2008B010400041);广州市黄埔区科技计划项目(0828)

摘　　要：基于ARM7处理器控制的焊接逆变电源,采用LPC2136控制器产生20kHz带死区时间的PWM波,通过编程可以实现手工焊、直流TIG、脉冲TIG三种焊接方式。LPC2136芯片在选定的每种焊接方式中通过I/O接口实现焊接参数给定、保护电路检测、显示电路输出,从而实现了多功能焊接电源的数字化控制。试验结果表明,该控制方法具有良好的动特性,能够满足高质量的焊接要求,为焊接电源控制策略的智能化提供了一个良好的平台。The invert welding power source based on ARM7 microprocessor can realize three ways of welding by programming,such as SMAW welding,DC TIG welding,pulse TIG welding.It can be drived by PWM wave that have dead-time and its frequency is 20 kHz. The PWM wave is produced by LPC2136 microprocessor.The control system can implement welding parameters given,protection circuit detected and the output circuit displaying,then the digital control system of muhifunction welding power source is achieve.The control method has better dynamic performance,and meets the welding requirement,and provides a good platform for the intelligent control.

关 键 词：ARM7处理器 逆变电源 数字化控制 多功能 

分 类 号：TG409[金属学及工艺—焊接]