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  4. Static and dynamic characterization of a monolithic integrated temperature sensor in a 600 V GaN Power IC
 
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2020
Conference Paper
Titel

Static and dynamic characterization of a monolithic integrated temperature sensor in a 600 V GaN Power IC

Abstract
This paper presents a characterization of monolithic integrated temperature sensors in a 600 V GaNon-Si Power IC for half-bridge converters, by performing static and dynamic measurements. The static characterization is realized by steady-state temperature evaluation, while for dynamic characterization several power steps are applied to either one or both high-side and low-side transistors. Compared to a similar half-bridge, which uses external platinum resistors as temperature sensors, the superior performance of the integrated sensors regarding response time (30-fold decrease) is shown. With the integrated temperature sensors in both half-bridge transistors, asymmetric power loss and temperatures were measured. Furthermore, on-line temperature measurements are shown in a resonant-switching half-bridge, where a 0.25 K temperature change was measured after a 50 ns dead-time variation. During continuous hard-switching operation of two GaN power ICs in a half-bridge at 200 V input, 3 A output with up to 99% efficiency and 536W output power, the effect of output voltage variation between 20 V and 180 V on high-side and low-side device temperature increase was measured in real-time.
Author(s)
Koch, Dominik
Institute of Robust Power Semiconductor Systems
Mönch, Stefan orcid-logo
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Reiner, Richard
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Hückelheim, Jan
Institute of Robust Power Semiconductor Systems
Munoz Baron, Kevin
Institute of Robust Power Semiconductor Systems
Waltereit, Patrick
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Kallfass, Ingmar
Institute of Robust Power Semiconductor Systems
Hauptwerk
PCIM Europe 2020, International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. CD-ROM
Konferenz
PCIM Europe Digital Days 2020
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Language
English
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Fraunhofer-Institut für Angewandte Festkörperphysik IAF
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