High power factor wireless power transfer front-end circuit for heterogeneous systems

Philex Ming Yan Fan, Hashem Zare-Hoseini, David G. Hasko, Arokia Nathan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper investigates a high power factor switch-based wireless power transfer front-end circuit for heterogeneous systems. This circuit uses an integrated switching rectifier, implemented in 0.18um 1.8V/5V CMOS process. An integrated pair of phase synchronizers is used to align the waveshape of a wirelessly-coupled sinusoidal voltage source in the receiving coil to the corresponding conducting current. Using this approach, the power factor can be increased above 0.9 without requiring any wireless or wired feedback to the transmitter. The integrated switching rectifier can also provide: ac-dc rectification; facilitate the deployment of multi-receiver to single-transmitter wireless power transfer; and have the capability for voltage up and down conversion of the peak amplitude of the sinusoidal voltage source by use of a pulse-width modulation controller. From measured results, the output voltage can be stepped down from 1.65V to 1.08V and stepped up from 1.5V to 1.68V. Also, the measured power factor is 0.9 when the conducting current is managed at continuous conduction mode.

Original languageEnglish
Title of host publication2017 IEEE 60th International Midwest Symposium on Circuits and Systems, MWSCAS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages444-447
Number of pages4
ISBN (Electronic)9781509063895
DOIs
Publication statusPublished - 2017 Sep 27
Event60th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2017 - Boston, United States
Duration: 2017 Aug 62017 Aug 9

Publication series

NameMidwest Symposium on Circuits and Systems
Volume2017-August
ISSN (Print)1548-3746

Conference

Conference60th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2017
Country/TerritoryUnited States
CityBoston
Period17-08-0617-08-09

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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