• 대한전기학회
Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
  • COPE
  • kcse
  • 한국과학기술단체총연합회
  • 한국학술지인용색인
  • Scopus
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Title Power Loss Analysis of Full-Bridge LLC Resonant Converter Using Enhanced Time Domain Analysis Method
Authors 김건희(Keon-Hee Kim) ; 박수성(Su-Seong Park) ; 이동근(Dong-Geun Lee) ; 김래영(Rae-Young Kim)
DOI https://doi.org/10.5370/KIEE.2025.74.7.1237
Page pp.1237-1247
ISSN 1975-8359
Keywords LLC Resonant Converter; WBG semiconductor; Power Loss Analysis; TDA method
Abstract This paper proposes a method for analyzing power loss in a full-bridge LLC resonant converter based on the enhanced Time-Domain Analysis (TDA) technique. The proposed enhanced TDA method demonstrates that the power loss in an LLC resonant converter can be expressed through a complete equation. The necessary initial values are represented in equations, showing a deviation of less than 5% compared to simulation results. Furthermore, based on an 8.4kW full-bridge LLC resonant converter prototype, the proposed method and experimental values are compared in terms of efficiency across different loads, with a maximum error of 1.7% under light loads, while exhibiting highly similar values in other regions.