publication . Conference object . Article . Contribution for newspaper or weekly magazine . 2019

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

Ahmed M. Ammar; Yasser Nour; Arnold Knott;
Open Access
  • Published: 25 Oct 2019
  • Country: Denmark
Abstract
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 inductorintegrated 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...
Subjects
free text keywords: resonant power conversion, dc-dc converters, offline converters, wide bandgap semiconductors, zero voltage switching (ZVS), resonant power conversion, dc-dc converters, offline converters, wide bandgap semiconductors, zero voltage switching (ZVS), Converters, Wide-bandgap semiconductor, Frequency modulation, Gallium nitride, chemistry.chemical_compound, chemistry, Inductor, Load regulation, Materials science, Transformer, law.invention, law, Optoelectronics, business.industry, business, Line regulation
Related Organizations
Funded by
EC| LEDLUM
Project
LEDLUM
TINY LIGHT ENGINE FOR LARGE SCALE LED LIGHTING
  • Funder: European Commission (EC)
  • Project Code: 731466
  • Funding stream: H2020 | RIA
Validated by funder
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Open Access
Online Research Database In Technology
Contribution for newspaper or weekly magazine . 2020
Open Access
Zenodo
Conference object . 2019
Provider: Datacite
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