title: Development of a stereo-symmetrical nanosecond pulsed power generator composed of modularized avalanche transistor Marx circuits.
abstract: Avalanche transistors have been widely studied and used in nanosecond high voltage pulse generations. However, output power improvement is always limited by the low thermal capacities of avalanche transistors, especially under high repetitive working frequency. Parallel stacked transistors can effectively improve the output current but the controlling of trigger and output synchronism has always been a hard and complex work. In this paper, a novel stereo-symmetrical nanosecond pulsed power generator with high reliability was developed. By analyzing and testing the special performances of the combined Marx circuits, numbers of meaningful conclusions on the pulse amplitude, pulse back edge, and output impedance were drawn. The combining synchronism of the generator was confirmed excellent and lower conducting current through the transistors was realized. Experimental results showed that, on a 50 Ω resistive load, pulses with 1.5-5.2 kV amplitude and 5.3-14.0 ns width could be flexibly generated by adjusting the number of combined modules, the supply voltage, and the module type.
authors.affiliation: School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Jiang-Tao
authors.initials: JT
authors.lastname: Li
authors.affiliation: School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Xu
authors.initials: X
authors.lastname: Zhong
authors.affiliation: School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Cao
authors.affiliation: School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Xue
authors.affiliation: School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Li
authors.affiliation: School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Li
authors.affiliation: School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Ya-Nan
authors.initials: YN
authors.lastname: Wang