Abstract：To adapt various load conditions, a mixed pulse generator based on Marx and linear transformer driver (LTD) topologies is designed. It contains four LTD modules, each of which is made by a three-stage Marx circuit. The generator can reduce the demand for the isolated power source and the trigger signals’ synchronism, and miniature the device. In this paper, the design and calculation about the generator was proposed, and verified by PSpice software. At last, the prototype of the generator was made and experiments were carried out to test its performance. MOSFETs and diodes are used as the main switch, isolate element, respectively. The control signals were produced by the FPGA which involves phase locked loop. Herein, the output voltage is 0~8 kV, pulsewidth is 60~160 ns with a step size of 1 ns, repetition frequency is 0~1 kHz, and rise time is about 10 ns. The rise and fall time of the output can be adjusted flexibly through FPGA’s independent phase shift control to each stage. Moreover, the pulse generator is modularized, with which the maximum output voltage can be easily increased by adding more modules.
王昌金, 姚陈果, 董守龙, 马剑豪, 谭坚文. 基于Marx和LTD拓扑的全固态复合模式脉冲源的研制[J]. 电工技术学报, 2018, 33(13): 3089-3097.
Wang Changjin, Yao Chenguo, Dong Shoulong, Ma Jianhao, Tan Jianwen. The Development of All Solid-State Mixed Pulse Generator Based on Marx and LTD Topologies. Transactions of China Electrotechnical Society, 2018, 33(13): 3089-3097.
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2018, Vol. 33 
