MIPS: Multiphase Integrated Planar Symmetric Coupled Inductor for Ultrathin VRM

Jaeil Baek, Youssef Elasser, Minjie Chen

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Multiphase coupled inductor is a key technology for ripple reduction and fast transient in pulsewidth-modulated power converters. This letter presents the modeling and design of multiphase integrated planar symmetric (MIPS) coupled inductor, together with a hybrid-switched-capacitor dc-dc converter for ultrathin multiphase point-of-load voltage regulation modules. The benefits of MIPS inductors are quantified. A systematic approach to designing high-performance multiphase MIPS inductors is introduced and validated by a 10 V input, 1 V output, 10 A two-level four-phase coupled 3-MHz hybrid-switched-capacitor dc-dc converter with compact size and fast transient.

Original languageEnglish (US)
Pages (from-to)5609-5614
Number of pages6
JournalIEEE Transactions on Power Electronics
Volume38
Issue number5
DOIs
StatePublished - May 1 2023

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • Coupled inductor
  • hybrid-switched-capacitor dc-dc converter
  • thin-flat core
  • voltage regulation module (VRM)

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