Low Loss Non Air Gap Multi-Permeability Planar Inductor Design for Totem-Pole PFC

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1 Scopus citations

Abstract

A optimized magnetic core structure without air gaps and made of two different permeability materials for planar inductors is proposed. In this paper, the effect of filling the magnetic yokes with different permeability magnetic materials on improving the magnetic field distribution around the PCB windings is discussed. In order to optimize the magneto motive force distribution in planar inductors, the magnetoresistance distribution of the multi-permeability magnetic core is designed. The theoretical analysis based on Ampere's loop theorem and 3D FEA simulation results demonstrate the effectiveness of the proposed optimized magnetic core structure in reducing copper losses. And the efficiency of CRM PFC can be improved by about 0.41% by using the proposed optimized magnetic core structure.

Original languageEnglish
Title of host publication2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728193878
DOIs
StatePublished - 2022
Event2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022 - Detroit, United States
Duration: 9 Oct 202213 Oct 2022

Publication series

Name2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

Conference

Conference2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Country/TerritoryUnited States
CityDetroit
Period9/10/2213/10/22

Keywords

  • MMF
  • copper losses
  • fringing and proximity effect
  • high-efficiency
  • multi-permeability
  • planar inductor

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