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Updates on Impact Ionisation Triggering of Thyristors

del Barrio Montañés, Alicia Ana; Senaj, Viliam; Kramer, Thomas; Sack, Martin 1
1 Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

High voltage (HV) generators are used in multiple industrial and scientific facilities. Recent publications have demonstrated that triggering industrial thyristors (relatively slow switching devices) in overvoltage mode, also called impact ionization mode, significantly enhances their dU/dt and dI/dt characteristics. This novel triggering methodology necessitates the application of substantial overvoltage between the thyristor’s anode and cathode, delivered with a swift slew rate exceeding 1 kV/ns. The adoption of compact pulse generators constructed from commercially available off-the-shelf components (COTS) opens up avenues for deploying this technology across various domains, including the implementation of high-speed kicker generators in particle accelerators. In our methodology, we employed commercially available high-voltage SiC MOSFETs along with a custom-designed fast gate driver. This driver was conceptualized based on the recent development of gate boosting techniques, featuring a driving voltage exceeding 600 V. The gate driver for these MOSFETs comprises three key components: a level-shifter with NMOS and PMOS transistors, a compact Marx generator with two avalanche transistors, and a GaN HEMT in a high input and low output impedance configuration. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000171471
Veröffentlicht am 10.06.2024
Originalveröffentlichung
DOI: 10.3390/app14104196
Scopus
Zitationen: 1
Web of Science
Zitationen: 1
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 06.2024
Sprache Englisch
Identifikator ISSN: 2076-3417
KITopen-ID: 1000171471
HGF-Programm 38.05.01 (POF IV, LK 01) Anthropogenic Carbon Cycle
Erschienen in Applied Sciences
Verlag MDPI
Band 14
Heft 10
Seiten 4196
Vorab online veröffentlicht am 15.05.2024
Schlagwörter pulse generator; driver; gate boosting; avalanche; overvoltage triggering; SiC MOSFET; GaN HEMT
Nachgewiesen in Web of Science
Dimensions
Scopus
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