Conference paper Open Access

A High-Efficiency 1 MHz 65 W GaN-Based LLC Resonant DC-DC Converter

Ammar, Ahmed M.; Nour, Yasser; Knott, Arnold


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  <dc:creator>Ammar, Ahmed M.</dc:creator>
  <dc:creator>Nour, Yasser</dc:creator>
  <dc:creator>Knott, Arnold</dc:creator>
  <dc:date>2019-10-25</dc:date>
  <dc:description>This paper presents an LLC resonant DC-DC converter for single-phase offline converters. A 1 MHz 400 V to 48 V prototype employing gallium nitride (GaN) switching devices is designed and implemented. A high-frequency magnetic material is used for the magnetic devices, with the resonant inductor integrated in the transformer. The converter operation is based on soft switching and achieves up to 65 W of output power with a peak efficiency of 96 % at full-load. Inherent load regulation capability is demonstrated from 5 to 65 W of power with fixed switching frequency, while line regulation for 360 to 440 V input is verified with a frequency modulation range of 816 to 1256 KHz respectively.</dc:description>
  <dc:identifier>https://zenodo.org/record/3491813</dc:identifier>
  <dc:identifier>10.5281/zenodo.3491813</dc:identifier>
  <dc:identifier>oai:zenodo.org:3491813</dc:identifier>
  <dc:relation>info:eu-repo/grantAgreement/EC/H2020/731466/</dc:relation>
  <dc:relation>doi:10.1109/CPERE45374.2019.8980041</dc:relation>
  <dc:relation>doi:10.5281/zenodo.3491812</dc:relation>
  <dc:relation>url:https://zenodo.org/communities/ledlum-2020</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>https://creativecommons.org/licenses/by/4.0/legalcode</dc:rights>
  <dc:subject>resonant power conversion</dc:subject>
  <dc:subject>dc-dc converters</dc:subject>
  <dc:subject>offline converters</dc:subject>
  <dc:subject>wide bandgap semiconductors</dc:subject>
  <dc:subject>zero voltage switching (ZVS)</dc:subject>
  <dc:title>A High-Efficiency 1 MHz 65 W GaN-Based LLC Resonant DC-DC Converter</dc:title>
  <dc:type>info:eu-repo/semantics/conferencePaper</dc:type>
  <dc:type>publication-conferencepaper</dc:type>
</oai_dc:dc>
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