Analysis of Coupled Microinductors for Power-Supply-on-Chip Applications

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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 (Ireland)
Title of host publication2014 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE)
PublisherIEEE
Number of pages5
ISBN (Electronic)2329-3721
ISBN (Print)2329-3721
Publication statusPublished - 1 Jan 2014

Authors (Note for portal: view the doc link for the full list of authors)

  • Authors
  • Feeney, C;Duffy, M;Wang, NN;Kulkarni, S;O'Mathuna, C

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