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High efficiency magnetic resonance wireless power transfer system and charging IC for mobile devices

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

In this paper, we propose enhanced wireless power transfer system based on magnetic resonance for portable electronic device charging. Resonators are designed and fabricated for efficiency improvement and miniaturization through electromagnetic simulation tools. Impedance matching technique is utilized to improve the transmission power efficiency by modulating the impedance at the transmitter end to match the load impedance. The fabricated receiver IC consists of rectifier, DC-DC converter and charging control circuit designed to reduce the power loss in the power conversion stages. This chip is implemented in 0.35μm BCD technology. A maximum overall efficiency of 73.8% was determined for the system.

Original languageEnglish
Title of host publication2015 11th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages224-227
Number of pages4
ISBN (Electronic)9781479982295
DOIs
StatePublished - 9 Sep 2015
Event11th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2015 - Glasgow, United Kingdom
Duration: 29 Jun 20152 Jul 2015

Publication series

Name2015 11th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2015

Conference

Conference11th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2015
Country/TerritoryUnited Kingdom
CityGlasgow
Period29/06/152/07/15

Keywords

  • DC to DC converter
  • magnetic resonance
  • power management
  • WPT

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