An EMC-investigation on dead time distortion of SiC based half bridge LLC resonant inverter
Publication date
2024-10-25
Document type
Konferenzbeitrag
Organisational unit
Scopus ID
Conference
International Symposium on Electromagnetic Compatibility 2024 (EMC EUROPE 2024) ; Bruges, Belgium ; September 2-5, 2024
Publisher
IEEE
Book title
EMC EUROPE 2024 : 2024 International Symposium on Electromagnetic Compatibility
First page
1070
Last page
1075
Peer-reviewed
✅
Part of the university bibliography
✅
Language
English
Keyword
Dead time
EMC
EMI
Half bridge
LLC Resonant
Parasitics
PFM
Resonance frequency
Series resonant
SiC
Silicon Carbide
ZVS
Abstract
To guarantee the safe operation of switching devices and accomplish zero voltage switching (ZVS), it is crucial to determine the dead time in a half-bridge LLC resonant inverter. When the resonant inverter fails to meet the ZVS boundary, the voltage reversal occurs across the switching devices with high voltage/current transitions leading to the distortion event. This work provides the opportunity to investigate the electromagnetic compatibility (EMC) issues of the half bridge LLC resonant inverter in the context of varying dead time. Hardware results from an experimental setup demonstrate the impact of dead time distortion on the switching device and their correlation with EMC challenges, which are validated by measurements performed in an anechoic chamber.
Version
Published version
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