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Resonant Charging Circuit for a Semiconductor-Based Marx Generator for an Electroporation Device

Sack, Martin 1; Herzog, Dennis 1; Ruf, Johannes 1; Mueller, Georg 1
1 Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM), Karlsruher Institut für Technologie (KIT)

Abstract:

Electroporation devices for the treatment of plant material in a continuous flow may employ a Marx circuit featuring parallel charging and a complete discharge of the capacitors during each pulse. Thereby, the use of semiconductor switches rather than spark gap switches allows for a modern design without the need of recurring maintenance of the spark gap switches. However, the use of semiconductor switches demands for an adaptation of the circuit to the properties of these switches being able to operate at lower voltage and current but higher pulse repetition rate compared to spark gap switches. For such a design, resonant charging turned out to be of advantage because it combines a fast energy transfer from a DC-link capacitor as part of the power supply to the stage capacitors of a Marx generator with a charging circuit having no active switches. Moreover, it enables an increase in the charging voltage by a factor of approximately two with respect to the DC-link voltage.
An 8-stage Marx circuit with a stage voltage of 1 kV has been set up to study resonant charging. Its charging path has been equipped with current-compensated chokes having a low inductance during charging and a high inductance for transient insulation of the stages during the pulse generation. ... mehr


Originalveröffentlichung
DOI: 10.1109/IPMHVC51093.2022.10099422
Scopus
Zitationen: 1
Dimensions
Zitationen: 1
Zugehörige Institution(en) am KIT Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 19.06.2022
Sprache Englisch
Identifikator ISBN: 978-1-6654-7165-7
KITopen-ID: 1000158527
HGF-Programm 38.05.01 (POF IV, LK 01) Anthropogenic Carbon Cycle
Erschienen in IEEE International Power Modulator and High Voltage Conference (IPMHVC), Knoxville, TN, June 19-236, 2022
Veranstaltung IEEE International Power Modulator and High Voltage Conference (IPMHVC 2022), Knoxville, TN, USA, 19.06.2022 – 23.06.2022
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Seiten 108-111
Schlagwörter Resonant charging, Marx generator
Nachgewiesen in Dimensions
Scopus
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