一种基于MOSFET的晶体管式微细电火花加工脉冲电源的研究  

Development of Transistor-Type Micro-EDM Pulse Power Supply Based on MOSFET

作　　者：殷鹤鸣 伍晓宇[1] 曹勇鑫 江凯 徐斌[1] 雷建国[1] YIN He-ming;WU Xiao-yu;CAO Yong-xin;JIANG Kai;XU Bin;LEI Jian-guo(College of Mechatronics and Control Engineering Shenzhen University,Shenzhen 518060,China)

机构地区：[1]深圳大学机电与控制工程学院

出　　处：《机电工程技术》2019年第9期1-3,48,共4页Mechanical & Electrical Engineering Technology

基　　金：国家自然科学基金项目(编号:51575360)

摘　　要：通过对RC式脉冲电源和晶体管式脉冲电源的综合比较,提出一种基于FPGA的晶体管式微细电火花加工脉冲电源,该电源结合FP GA开发板和IR2101专用集成半桥驱动器,驱动半桥式结构的功率MOSFET,电源经实验验证后,在加工精度、效率及表面粗糙度等方面表现良好。经测试,该电源最高频率可达1 MHz,输出脉宽1~101 ms可调,开路电压1~200 V可调,同时结合微细电火花加工的实际需求,可以实现粗、半精、精三种加工形式。An FPGA-based transistor-type micro-EDM pulse power supply was proposed by comparing the RC-type and transistor-type pulse power supply.The power supply combines the FPGA development board and IR2101,a dedicated integrated half-bridge driver,to drive the power MOSFET of half-bridge structure.It performs well in terms of processing accuracy,efficiency and surface roughness after experimental verification.After testing,the maximum frequency of the power supply can reach 1MHz,the output pulse width is adjustable from 1ms to 101ms,and the open circuit voltage is adjustable from 1V to 200V.At the same time,three kinds of machining forms can be realized:rough,semi-fine and fine,combined with the actual needs of micro-EDM.

关 键 词：FPGA MOSFET 电火花加工 脉冲电源 

分 类 号：TG434.1[金属学及工艺—焊接]