【作者】 张永俊； 唐勇军； 刘小康； 李风；

【机构】 广东工业大学机电工程学院； 华南理工大学机械工程学院；

【摘要】 针对微细电解加工的要求,研制出用于微细电解加工的纳秒级脉冲电源,其最小稳定输出脉宽100ns,占空比和频率均独立可调。针对微细电解加工工艺的特点设计了快速保护电路,为实现高精度的微细电解加工提供了保证。斩波主器件采用快速互补功率场效应管,解决了波形失真问题。利用本电源样机加工出典型微细零件, 验证了该电源的有效性。更多还原

【Abstract】 A nanosecond pulse power supply for micro-ECM (Electrochemical Machining) designed and made.It can produce the pulse shortened to 100ns,independent frequency and duty-cycle adjustments,which provides foundation for micro-ECM.The fast over-current-protection circuit has been designed,which ensures micro-ECM can go on wheels.Complementary MOSFET is applied in chopper circuit which avoids wave-shape distortion in machining.The typed micro parts have been machined using this supply power,and its validity has been accomplished.更多还原