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Improved Test Circuit for Characterization of the Dynamic On-Resistance of GaN-HEMTs over a Wide Operating Range

Swoboda, Philipp ORCID iD icon 1; Frank, Simon Robin ORCID iD icon 1; Liske, Andreas ORCID iD icon 1; Hiller, Marc 1
1 Elektrotechnisches Institut (ETI), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

GaN-HEMTs show excellent switching and conduction characteristics and are an excellent candidate to replace Si-based power semiconductors with voltage ratings of up to 650V. However, trapping phenomena, such as the dynamic on-resistance Rds,on, have not yet been fully eliminated. As these can significantly influence the conduction losses and reliability of GaN-HEMTs, suitable characterization methods are required. This paper presents an improved test circuit to characterize the dynamic on-resistance dRds,on over a wide operating range. This includes positive and negative drain currents \gls{sym:id}, adjustable gate-voltages Vgs and temperatures Tc. In order to stimulate trapping phenomena, the bias voltage on the DUT (Device Under Test) in the off-state Vds is adjustable in magnitude and duration (soak time). In addition, the drain current Id of the DUT only flows for the duration of the measuring interval, which leads to less self-heating. For an improved measurement of the drain-source voltage Vds in the on-state, an improved clamp-circuit was developed. ... mehr

Zugehörige Institution(en) am KIT Elektrotechnisches Institut (ETI)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 02.09.2024
Sprache Englisch
Identifikator ISBN: 979-8-3503-6445-3
KITopen-ID: 1000176527
Erschienen in 2024 Energy Conversion Congress & Expo Europe (ECCE Europe)
Veranstaltung IEEE Energy Conversion Congress and Exposition (ECCE Europe 2024), Darmstadt, Deutschland, 02.09.2024 – 06.09.2024
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Seiten 1-8
Nachgewiesen in Scopus
OpenAlex
Dimensions
Globale Ziele für nachhaltige Entwicklung Ziel 7 – Bezahlbare und saubere Energie

Postprint §
DOI: 10.5445/IR/1000176527
Veröffentlicht am 21.11.2024
Originalveröffentlichung
DOI: 10.1109/ECCEEurope62508.2024.10751914
Seitenaufrufe: 64
seit 21.11.2024
Downloads: 31
seit 21.11.2024
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