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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{
  "publisher": "Zenodo", 
  "DOI": "10.5281/zenodo.3491813", 
  "title": "A High-Efficiency 1 MHz 65 W GaN-Based LLC Resonant DC-DC Converter", 
  "issued": {
    "date-parts": [
      [
        2019, 
        10, 
        25
      ]
    ]
  }, 
  "abstract": "<p>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.</p>", 
  "author": [
    {
      "family": "Ammar, Ahmed M."
    }, 
    {
      "family": "Nour, Yasser"
    }, 
    {
      "family": "Knott, Arnold"
    }
  ], 
  "id": "3491813", 
  "event-place": "Aswan, Egypt", 
  "type": "paper-conference", 
  "event": "2019 IEEE Conference on Power Electronics and Renewable Energy (CPERE)"
}
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Publication date:
October 25, 2019
DOI:
10.5281/zenodo.3491813

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Keyword(s):
resonant power conversion dc-dc converters offline converters wide bandgap semiconductors zero voltage switching (ZVS)
Grants:
European Commission:
  • LEDLUM - TINY LIGHT ENGINE FOR LARGE SCALE LED LIGHTING (731466)
Meeting:
2019 IEEE Conference on Power Electronics and Renewable Energy (CPERE), Aswan, Egypt, 23-25 October 2019
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License (for files):
Creative Commons Attribution 4.0 International

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