【摘要】 介绍了采用功率 IGBT模块研制成功的大功率串联谐振型激光器用开关电源的工作原理及 IGBT的过压、过流保护方法 ,给出了该电源主回路、驱动电路结构及电源系统的相关波形。该电源已成功地应用在双光路激光焊接机上 ,与传统激光电源比较 ,有明显优越性更多还原

【Abstract】 The operation principle of switching power supply based on IGBT for high power series resonant laser and the method of over voltage/overcurrent protection of IGBT are described.The structure of main circuit,main control circuit and the waveform of charge/discharge are given.This power supply has been successfully applied to dual optic circuit laser welding machine.更多还原