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Advisor(s)
Abstract(s)
This paper presents the effect of stray capacitances in bipolar (negative and/or positive) pulses generated by the two different topologies of the solid-state Marx modulators. According to the analysis, the stray capacitances influence the energy transfer from the Marx modulator capacitors to the load affecting the bipolar (negative and/or positive) pulse rise time. This paper deals with the structure design to reduce the influence of the stray capacitance and to improve the pulse rise time of these bipolar solid-state Marx modulators. A four-stage laboratory prototype of the two topologies has been assembled using 1200-V insulated gate bipolar transistors and diodes, operating with 1000-V dc input voltage and 1-kHz frequency, producing 4-kV bipolar pulses, with 5-mu s pulse duration and 120-ns rise time, into a resistive load.
Description
Este trabalho foi financiado pelo Concurso Anual para Projetos de Investigação, Desenvolvimento, Inovação e Criação Artística (IDI&CA) 2016 do Instituto Politécnico de Lisboa. Código de referência IPL/2016/MBOCDTI_ISEL
Keywords
Distributed parameter systems Pulsed power systems Solid-state unipolar/bipolar Marx modulators Stray capacitances
Citation
CANACSINH, Hiren; SILVA, Fernando; REDONDO, Luís Manuel dos Santos - Rise-time improvement in bipolar pulse solid-state Marx modulators. IEEE Transactions on Plasma Science. ISSN 0093-3813. Vol. 45, N.º 10, Part 1 (2017), pp. 2656-2660
Publisher
IEEE-Inst Electrical Electronics Engineers