A Flexible Load-Independent Multi-Output Wireless Power Transfer System Based on Double-T Resonant Circuit Technique

Yong Li, Jiefeng Hu, K. W. Chan, K. W. Eric Cheng, Ming Liu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)


Wireless Power Transfer (WPT) technology has been increasingly applied in power supply for portable devices such as mobile phones and electric vehicles (EVs). Conventional WPT systems are usually designed to supply specified loads with only single voltage/current output. In many practical applications, however, electric appliances usually require different voltage and current levels. In this work, a load-independent multi-output WPT system with only one primary coil (transmitting coil) and one secondary coil (receiving coil) is proposed. By connecting parallel double-T resonant circuits to the common ac terminal of the receiving coil, multiple constant de outputs can be achieved. Furthermore, by adjusting the parameters of the individual resonant circuit, each output channel can generate different voltage level flexibly. Theoretical analysis and experiment results of a laboratory prototype confirm the effectiveness of the proposed WPT system.

Original languageEnglish
Title of host publication2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)9781479973118
Publication statusPublished - 3 Dec 2018
Event10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States
Duration: 23 Sep 201827 Sep 2018

Publication series

Name2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018


Conference10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Country/TerritoryUnited States


  • Double-T resonant circuits
  • Load-independent multi-output
  • Wireless Power Transfer (WPT)

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Control and Optimization
  • Computer Networks and Communications
  • Hardware and Architecture
  • Information Systems and Management

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