DSP逆变式悬挂直流点焊机的原理及其应用

摘要

This paper intruduces DSP inverter DC spot welder,at the frequency of less than 10 kHz,including IGBT inverter,full bridge soft start,and DSP digital control technology,which reduces the volume of transformer,and makes integrating spot welding head and transformer,reduces the secondary water-cooled cable between spot welding head and transformer. In comparison with intermediate frequency spot welder, this spot welding has superior performance, and good application.%DSP逆变式悬挂直流点焊机使用了先进的IGBT逆变、全桥软起动和DSP数字控制技术,频率达10 kHz,大大减小了变压器体积,使焊钳和变压器实现一体化成为可能;减少了连接变压器和焊钳的二次通水电缆,既省电,又节约费用.与中频焊机相比,性能更优越、更节能,价格较低,具有良好的应用前景.