高频窄脉宽微细电火花加工用微能脉冲电源的研究

Research on A High Frequency Micro Energy Pulse Power Source for Micro-EDM

分析了微能脉冲电源的实现途径,采用开关管推挽工作原理设计出了具有高频窄脉宽的微细电火花加工用微能脉冲电源。并对具有陡上升沿和下降沿的高频脉冲电源工作时产生的电磁振荡现象的原因进行了深入的研究。在此基础上设计出的脉冲电源最小脉宽可达100ns,较好地满足了微细电火花加工的需要。

On the basis of analyzing the approaches of achieving micro discharge energy, a micro energy pulse power source used for micro - EDM is developed in this paper. The pulse power source applies the MOSFET tube as power device which works in push pull style. The reasons of producing electromagnetism oscillation while high frequency pulse power source, which has steep rising edge or steep trailing edge is working are researched. At last, the minimum pulse width, less than lOOns is attained, which satisfies the micro energy demand for micro -EDM.