@inproceedings{295071f4c09a435b88c98f7364740c88,
title = "An integrated solution for high turns ratio transformers suitable in 3D applications",
abstract = "The advent of the AI era has driven an increasing demand for high-efficiency, high-density power supplies with high-current output capabilities in data centers. High-frequency resonant converters are particularly attractive for industrial applications due to their high power density and efficiency. This paper presents an integrated planar transformer scheme based on GaN devices for a high-frequency LLC resonant converter, targeting high-voltage single-stage DC transformers (DCX). The integration is achieved by arranging fractional-turn transformers in a four-post matrix configuration. This approach maintains high efficiency while leveraging the matrix structure's inherent high power density. Simulation results demonstrate a peak efficiency of 98.2\% under the following conditions: a switching frequency of 1 MHz, a voltage conversion ratio from 400 V to 4 V, and an output power level of 2000 W.",
keywords = "Fractional Turns, LLC converter, Matrix Transformer, MHz, Planar Transformer",
author = "Keliang Chen and Xu Yang and Changtao Chen and Panming Li and Haonan Li and Jiaxuan Niu and Wenjie Chen",
note = "Publisher Copyright: {\textcopyright} 2025 IEEE.; 2025 IEEE 3rd International Power Electronics and Application Symposium, PEAS 2025 ; Conference date: 07-11-2025 Through 10-11-2025",
year = "2025",
doi = "10.1109/PEAS66638.2025.11403108",
language = "英语",
series = "IEEE PEAS 2025 - 2025 IEEE 3rd International Power Electronics and Application Symposium - Conference Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1668--1672",
booktitle = "IEEE PEAS 2025 - 2025 IEEE 3rd International Power Electronics and Application Symposium - Conference Proceedings",
}