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The analytical modeling of parasitic capacitances in inductors is commonly based on the energy-conservation law. Yet, in order to calculate the equivalent capacitances of inductors, the floating voltage potential of magnetic core is required to be preknown in all previous modeling methods. This letter proposes an analytical method for calculating the parasitic capacitances of the inductors with low-resistivity cores, which does not require any prior knowledge of the floating core potential. The proposed modeling method can be extended to the transformers as well as multiterminal magnetic devices. The experimental results verify the effectiveness of the proposed method.

Original languageEnglish
JournalIEEE Transactions on Industrial Electronics
Issue number3
Pages (from-to)3214-3222
Number of pages9
Publication statusPublished - 1 Mar 2022

Bibliographical note

Publisher Copyright:

Copyright 2021 Elsevier B.V., All rights reserved.


  • analytical method
  • Analytical models
  • Electric potential
  • floating core potential
  • inductor
  • Inductors
  • Integrated circuit modeling
  • Parasitic capacitance
  • Transformer cores
  • Windings


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