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

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.

Files (583.5 kB)
Name Size
CPERE_2019_A-High-Efficiency-1-MHz-65W-GaN-Based-LLC-Resonant-DC-DC-Converter.pdf
md5:98f3fe1bf063c4ebba6b02b765ab7ad9
583.5 kB Download
18
19
views
downloads
All versions This version
Views 1818
Downloads 1919
Data volume 11.1 MB11.1 MB
Unique views 1515
Unique downloads 1919

Share

Cite as