TY - GEN
T1 - Analysis and Design of a Magnetically Integrated Planar Transformer Adapted to CLLLC Converter
AU - Zhao, Yifan
AU - Liu, Boyu
AU - Zhang, Xiangjun
AU - Guan, Yueshi
AU - Wang, Yijie
AU - Xu, Dianguo
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - In the future, high power density and planarization will still be the development directions of power electronic converters. The key to increasing power density lies in magnetic components. As an excellent bidirectional converter, the CLLLC resonant converter has three magnetic elements, making it difficult to improve its power density. This paper introduces a planar transformer with asymmetrically distributed windings. By adjusting the winding distribution, a controllable leakage inductance is obtained, which replaces the original resonant inductance and significantly reduces the volume of the converter. Moreover, the PCB winding method adopted in this paper reduces the number of layers of the original PCB board by half, greatly cutting the cost. A 500W prototype is built to verify the proposed magnetically integrated transformer.
AB - In the future, high power density and planarization will still be the development directions of power electronic converters. The key to increasing power density lies in magnetic components. As an excellent bidirectional converter, the CLLLC resonant converter has three magnetic elements, making it difficult to improve its power density. This paper introduces a planar transformer with asymmetrically distributed windings. By adjusting the winding distribution, a controllable leakage inductance is obtained, which replaces the original resonant inductance and significantly reduces the volume of the converter. Moreover, the PCB winding method adopted in this paper reduces the number of layers of the original PCB board by half, greatly cutting the cost. A 500W prototype is built to verify the proposed magnetically integrated transformer.
KW - CLLLC Resonant Converter
KW - Magnetic Integration
KW - Planar Transformer
UR - https://www.scopus.com/pages/publications/105004168880
U2 - 10.1109/ICIT63637.2025.10965230
DO - 10.1109/ICIT63637.2025.10965230
M3 - 会议稿件
AN - SCOPUS:105004168880
T3 - Proceedings of the IEEE International Conference on Industrial Technology
BT - 2025 International Conference on Industrial Technology, ICIT 2025 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 26th International Conference on Industrial Technology, ICIT 2025
Y2 - 26 March 2025 through 28 March 2025
ER -