高频逆变焊机的5种PWM恒流反馈控制模式研究

摘要

根据实际设计工作经验及有关参考文献，比较详细地依据基本工作原理图说明了逆变焊机用的5种新型PWM恒流调节反馈控制模式的基本工作原理、发展过程、关键波形、性能特点及应用要点[1～3]。%On the basis of the practical design experiences and relatedreference literatures ,the basic principles,development process,key waveforms,performance features and application points of five new PWM constant current feedback control modes for inverter welders are illustrated and reviewed in the light of their schematic drawings in details.