Analysis of coupled microinductors for power-supplyon-chip applications

  • Ciaran Feeney
  • , Maeve Duffy
  • , Ningning Wang
  • , Santosh Kulkarni
  • , Cian O'Mathuna

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

Coupled microinductors fabricated on silicon offer improved voltage regulator performance and reduced power loss compared to equivalent uncoupled microinductors. An analysis of coupled microinductors variables is presented which illustrates the optimum number of phases in terms of efficiency and impact on other circuit components. Models for eddy core loss which accounts for phase angle variation are included and are used to investigate a number of coupled inductor configurations designed for operation in a 9 W multiphase DC-DC converter. Their performance is analysed and models are validated.

Original languageEnglish
Title of host publication2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1679-1684
Number of pages6
ISBN (Electronic)9781479956982
DOIs
Publication statusPublished - 11 Nov 2014

Publication series

Name2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014

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