摘要
设计了一种电流型脉宽调制(PWM)控制的逆变点焊机,它采用绝缘栅极晶体管(IGBT)作为开关器件,电源结构简单,控制精度高,控制性能优良,而且所采用的各种保护措施效果良好.
A new current control resistance welder with inverter is designed. In this unit IGBT is adopted as switching element.The results show that it makes the control simple, control accuracy high, control property excellent and the protection results fine.
出处
《焊接》
1999年第4期8-10,19,共4页
Welding & Joining
关键词
电流型
逆变器
点焊机
PWM
焊接
current PWM control, inverter, resistance spot welding machine
