Interleaved buck converter for inductive wireless power transfer in dc–dc converters

Marco Carbajal-Retana, Leobardo Hernandez-Gonzalez, Jazmin Ramirez-Hernandez, Juan Gerardo Avalos-Ochoa, Pedro Guevara-Lopez, Igor Loboda, Luis Antonio Sotres-Jara

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The use of Inductive Wireless Power Transfer (IWPT) varies from low-power applications such as mobile phones and tablets chargers to high-power electric vehicles chargers. DC–DC converters are used in IWPT systems, and their design needs to consider the demand of high efficiency in the power transfer. In this paper, a DC–DC power converter for IWPT is proposed. Its topology uses a DC–AC converter in the transmitter circuit and an AC–DC converter in the receptor. The transmitter has an interleaved coupled-Buck converter that integrates two Buck converters connected to a half inverter bridge and a parallel resonant load. The control strategy implemented for the semiconductor switching devices allows two operating modes to obtain a sinusoidal output voltage with a low distortion that makes it suitable in high-efficiency power transfer systems. To obtain a DC output voltage, a full wave bridge rectifier is used in the receptor circuit. The proposed topology and the control strategy are validated with simulation and experimental results for a 15 W prototype.

Original languageEnglish
Article number949
Pages (from-to)1-15
Number of pages15
JournalElectronics (Switzerland)
Volume9
Issue number6
DOIs
StatePublished - Jun 2020

Keywords

  • Buck
  • DC-DC converter
  • Inductive wireless power transfer
  • Power converter
  • Wireless power transfer

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