Overview of Planar Magnetics for High-frequency Resonant Converters*

doi:10.23919/CJEE.2022.000039

Chinese Journal of Electrical Engineering ›› 2022, Vol. 8 ›› Issue (4): 61-78.doi: 10.23919/CJEE.2022.000039

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Overview of Planar Magnetics for High-frequency Resonant Converters^*

Yue Liu, Yufeng Song, Dingfan Hu, Yang Li, Zuoqian Zhang, Hongfei Wu^*

Department of Electrical Engineering,Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China

Received:2022-07-05 Revised:2022-07-22 Accepted:2022-07-29 Online:2022-12-25 Published:2023-01-13
Contact: * E-mail: wuhongfei@nuaa.edu.cn
About author:Yue Liu was born in Jiangsu Province, China, in 1997. He received the B.S. degree in Electrical Engineering from Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing, China, in 2019, where he is currently working toward the Ph.D. degree in Electrical Engineering. His main research interests include magnetic integration and resonant converters.
Yufeng Song was born in Jiangsu Province, China, in 1999. He is currently working toward the B.S. degree in Electrical Engineering from Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing, China. His main research interests include magnetic integration and resonant converters.
Dingfan Hu was born in Zhejiang Province, China, in 2000. He is currently working toward the B.S. degree in Electrical Engineering from Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing, China. His main research interests include magnetic integration and resonant converters.
Yang Li was born in Jiangsu Province, China, in 2000. She is currently working toward the B.S. degree in Electrical Engineering from Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing, China. Her main research interests include magnetic integration and resonant converters.
Zuoqian Zhang was born in Jiangxi Province, China, in 1997. He received the B.S. degree in Electrical Engineering from Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing, China, in 2020, where he is currently working toward the Ph.D. degree in Electrical Engineering. His main research interests include DC-DC converters and control.
Hongfei Wu (S'11-M'13-SM'18) received the B.S. and Ph. D degrees in Electrical Engineering and Power Electronics and Power Drives from Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing, China, in 2008 and 2013, respectively.
Since 2013, he has been with the Faculty of Electrical Engineering, NUAA, and is currently a Professor with College of Automation Engineering, NUAA. He has authored and co-authored more than 170 peer-reviewed papers published in journals and conference proceedings. He is the holder of more than 40 patents. His research interests are high performance power converters, wide-band-gap devices applications and magnetic integration.
Dr. Wu was the recipient of the Best Associate Editor of Journal of Power Electronics (2018), the Outstanding Reviewer of IEEE Transactions on Power Electronics (2013), the Changkong Scholar Award and Young Scholar Innovation Award of NUAA (2017). He serves as an Associate Editor of Journal of Power Electronics, CPSS Transactions on Power Electronics and Applications, Chinese Journal of Electrical Engineering and Power Electronic Devices and Components. He is a Gest Associate Editor of IEEE Journal of Emerging and Selected Topics in Power Electronics.
Supported by:
* National Natural Science Foundation of China (52122708, 51977105) and Natural Science Foundation of Jiangsu Province, China (BK20200017).

Abstract

Abstract: With the continuous development of power supplies toward miniaturization, light weights, and high levels of integration, research on high-frequency resonant conversion based on planar magnetics is becoming extensive. Combining the soft-switching characteristics of resonant converters with those of wide bandgap devices, the switching frequency can be increase to the MHz range, and the power density of the entire system can be improved considerably. However, higher switching frequencies impose new requirements for the structural design, loss distribution, and common mode (CM) noise suppression of passive magnetic components. Herein, a thorough survey of the-state-of-the-art of planar magnetics in high-frequency resonant converters is conducted. Printed circuit board winding-based planar magnetics, magnetic integration, and power-loss optimization strategies are summarized in detail. Suppression methods for CM noise in high-frequency planar magnetics are also clarified and discussed. An insight view into the future development of planar magnetics for high-frequency resonant converters is presented.

Key words: Planar magnetics, resonant converter, matrix transformer, magnetic integration, PCB winding, loss model, loss measurement, CM noise suppression

Yue Liu, Yufeng Song, Dingfan Hu, Yang Li, Zuoqian Zhang, Hongfei Wu. Overview of Planar Magnetics for High-frequency Resonant Converters^*[J]. Chinese Journal of Electrical Engineering, 2022, 8(4): 61-78.

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Overview of Planar Magnetics for High-frequency Resonant Converters^*

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