Design Methodologies for High Frequency Multiwinding Magnetics: from Fundamental Principles to Design Tools



Speaker: Minjie Chen

Date: January 21st 2021 11am ET

Abstract: High frequency magnetics with new materials, innovative core structures and intricate winding patterns are needed to improve the performance, enhance the functionality, and reduce the size of power electronics systems. The talk will focus on design methodologies of high frequency multiwinding magnetics, ranging from fundamental principles to design tools. We will first introduce a systematic approach to modeling the impedance and current distribution in planar magnetics. A software tool – M2SPICE – will be introduced to quickly convert a planar design into a SPICE netlist. A unified model to design and simulate multiphase coupled inductors will then be presented. The model is applied to designing vertical coupled magnetics in ultra-high-current point-of-load (PoL) voltage regulators for future microprocessors. Finally, we will talk about our recent progress in machine learning-based core loss modeling methods for power magnetics, which will open a wide range of opportunities toward fully automated design of power magnetics.

Bio: Minjie Chen is an Assistant Professor of Electrical Engineering and Andlinger Center for Energy and the Environment at Princeton University. He leads the Princeton Power Electronics Research Lab. He received the B.S degree from Tsinghua University in 2009, and the Ph.D degree from MIT in 2015. His research interests include high frequency power electronics, advanced power electronics architectures, power magnetics, and the design of high-performance power electronics for emerging and important applications. He is a recipient of the NSF CAREER Award, two IEEE Transactions Prize Paper Awards, a COMPEL best paper award, the outstanding Ph.D. thesis award from MIT, and many other awards from the IEEE Power Electronics Society. He has published over 40 papers in journals and conferences and holds 4 issued patents. He is the Vice Chair of PELS-TC10-Design Methodologies, an Associate Editor of the IEEE Transactions on Power Electronics and IEEE Journal of Emerging and Selected Topics in Power Electronics, the Associate Technical Program Committee Chair of ECCE 2019, and the Technical Program Committee Chair of ICDCM 2021.