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Fast Switching Planar Power Module With SiC MOSFETs and Ultra-low Parasitic Inductance
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems. KTH, School of Electrical Engineering and Computer Science (EECS), Electric Power and Energy Systems.ORCID iD: 0000-0003-0933-6945
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems.ORCID iD: 0000-0002-1755-1365
The Mads Clausen Institute, SDU Electrical Engineering, Sonderborg, Denmark.
(English)Manuscript (preprint) (Other academic)
Abstract [en]

Parasitic inductances, caused by the package of semiconductor devices in power converters, are limiting theswitching speed and giving rise to higher switching losses than necessary. In this study a half-bridge planar power module with Silicon Carbide (SiC) MOSFET bare dies was designed and manufactured for ultra-low parasitic inductance. The circuit structure was simulated and the parasitic inductances were extracted from ANSYS-Q3D. The values were then fed into LT-Spice to simulate the electrical behavior of the half-bridge.The experimental and simulation results were compared to each other and were used to adjust and easily extend the simulation model with additional MOSFETs for higher current capability. It was shown that the proposed planar module, with four parallel SiC MOSFETs at each position, is able to switch 600V and 400A during 40 and 17ns with EON and EOFF equal to 3.1 and 1.3 mJ, respectively. Moreover, unlike the commercial modules, this design allows double-sided cooling to extract the generated heat from the device, resulting in lower operating temperature.

Keywords [en]
SiC MOSFET, planar power module, bare die, ultra-low parasitic inductance, fast switching, PCB, double sided cooling
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-222269OAI: oai:DiVA.org:kth-222269DiVA, id: diva2:1180158
Note

QC 20180208

Available from: 2018-02-05 Created: 2018-02-05 Last updated: 2018-02-09Bibliographically approved

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Risseh, Arash

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