TY - GEN
T1 - A High-Frequency LLC Resonant Converter Incorporating Matrix Transformer
AU - Zhang, Haochen
AU - Guan, Yueshi
AU - Wang, Yijie
AU - Xu, Dianguo
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - With the development of modern power electronics technology, the miniaturization of switching power supplies and the magnetic integration technology of planar transformers are both topics worth studying. In this paper, a high efficiency and high power density matrix transformer structure for LLC resonant converters is proposed. The matrix transformer helps to reduce the leakage inductance and AC resistance of the winding. It uses the flux offset method to reduce the core size and loss. Next, we select the SPPS type winding form through a comparison process. Finally, in order to verify the correctness of the theory and analysis, the circuit model simulation test is carried out, and a prototype LLC resonant converter with 112.4V/28V and 250W at 1MHz is made.
AB - With the development of modern power electronics technology, the miniaturization of switching power supplies and the magnetic integration technology of planar transformers are both topics worth studying. In this paper, a high efficiency and high power density matrix transformer structure for LLC resonant converters is proposed. The matrix transformer helps to reduce the leakage inductance and AC resistance of the winding. It uses the flux offset method to reduce the core size and loss. Next, we select the SPPS type winding form through a comparison process. Finally, in order to verify the correctness of the theory and analysis, the circuit model simulation test is carried out, and a prototype LLC resonant converter with 112.4V/28V and 250W at 1MHz is made.
KW - LLC resonant converter
KW - high frequency
KW - magnetic integrated planar transformer
KW - soft switch
UR - https://www.scopus.com/pages/publications/105019940314
U2 - 10.1109/WiPDA-Asia63772.2025.11183930
DO - 10.1109/WiPDA-Asia63772.2025.11183930
M3 - 会议稿件
AN - SCOPUS:105019940314
T3 - 2025 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2025
BT - 2025 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2025
Y2 - 15 August 2025 through 17 August 2025
ER -