Two-Phase, Dual Interleaved Buck-Boost DC-DC Converter for Automotive Applications

Teresa Raquel Granados-Luna, Ismael Araujo-Vargas, Andrew J. Forsyth, Kevin Cano-Pulido, Pedro Enrique Velazquez-Elizondo, Ilse Cervantes, Francisco Gomez-Olguin, Alejandro Villarruel-Parra

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

A two-phase buck-boost converter utilizing dual interleaving is presented in this article. The dual interleaving consists of an interphase transformer (IPT) that doubles the ripple frequency together with two conventional buck-boost switching arms, mitigating the inductor ripple current and aiding to increase the power density of the converter. A description of the design and selection of the power devices is presented for a 32-kW, 75-kHz dual interleaved SiC prototype with an IPT, such that a power density of 7.4 kW/kg is achieved. The operation of the circuit is verified experimentally using a prototype with 315-385 V supply range and 350-V output voltage, achieving 97.1% peak efficiency at 32 kW. The experiments reveal that the interleaved coupled currents are equalized without an active balancer.

Original languageEnglish
Article number8840902
Pages (from-to)390-402
Number of pages13
JournalIEEE Transactions on Industry Applications
Volume56
Issue number1
DOIs
StatePublished - 1 Jan 2020

Keywords

  • Dual interleaved buck-boost converter
  • high power density
  • medium power DC-DC converter

Fingerprint

Dive into the research topics of 'Two-Phase, Dual Interleaved Buck-Boost DC-DC Converter for Automotive Applications'. Together they form a unique fingerprint.

Cite this