A compact bipolar pulse-forming network-Marx generator based on pulse transformers

A compact bipolar pulse-forming network (PFN)-Marx generator based on pulse transformers is presented in this paper. The high-voltage generator consisted of two sets of pulse transformers, 6 stages of PFNs with ceramic capacitors, a switch unit, and a matched load. The design is characterized by the...

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Bibliographic Details
Published in:Review of scientific instruments 2013-11, Vol.84 (11), p.114705-114705
Main Authors: Zhang, Huibo, Yang, Jianhua, Lin, Jiajin, Yang, Xiao
Format: Article
Language:English
Subjects:
Capacitors
Ceramics
Charging
Electric potential
Generators
High voltages
Inductance
Load matching
Marx generators
Pulse charging
Scientific apparatus & instruments
Switches
Transformers
Voltage
Voltage generators
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Summary:A compact bipolar pulse-forming network (PFN)-Marx generator based on pulse transformers is presented in this paper. The high-voltage generator consisted of two sets of pulse transformers, 6 stages of PFNs with ceramic capacitors, a switch unit, and a matched load. The design is characterized by the bipolar pulse charging scheme and the compact structure of the PFN-Marx. The scheme of bipolar charging by pulse transformers increased the withstand voltage of the ceramic capacitors in the PFNs and decreased the number of the gas gap switches. The compact structure of the PFN-Marx was aimed at reducing the parasitic inductance in the generator. When the charging voltage on the PFNs was 35 kV, the matched resistive load of 48 Ω could deliver a high-voltage pulse with an amplitude of 100 kV. The full width at half maximum of the load pulse was 173 ns, and its rise time was less than 15 ns.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4828793