The Analysis and Comparison of Leakage Inductance in Different Winding Arrangements for Planar Transformer

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Abstract

The coupling of the windings can be easily increased by using multiply stacked planar windings connection. Interleaving is a well-known technique used to reduce leakage inductance and minimize high-frequency winding losses. The paper aims to analyze leakage inductance based on magneto motive force (MMF) and energy distribution in planar transformer and correct the formula of leakage inductance proposed by previous publications. The investigation of different winding arrangements shows significant advantages of interleaving structure. In this work, a novel half turn structure is proposed to reduce leakage inductance further. Some important issues are presented to acquire desired leakage inductance. The design and modeling of 1 kW planar transformer is presented. In order to verify the analytical method for leakage inductance in this paper, finite element analysis (FEA) and measurement with impedance analyzer are presented. Good matching between calculation, FEA 2D simulation and measurement results is achieved.
Original languageEnglish
Title of host publicationInternational Conference on Power Electronics and Drive Systems, 2009. PEDS 2009
PublisherIEEE
Publication date2009
Pages1143-1148
ISBN (Print)978-1-4244-4166-2
DOIs
Publication statusPublished - 2009
Event8th International Conference on Power Electronics and Drive Systems - Taipei, Taiwan, Province of China
Duration: 2 Nov 20095 Nov 2009
Conference number: 8
http://www.peds09.ntust.edu.tw/

Conference

Conference8th International Conference on Power Electronics and Drive Systems
Number8
Country/TerritoryTaiwan, Province of China
CityTaipei
Period02/11/200905/11/2009
Internet address

Bibliographical note

Copyright 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Keywords

  • finite element analysis
  • half turn
  • leakage inductance
  • magneto motive force
  • MMF
  • FEA
  • interleaving
  • planar transformer

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