A Dynamic Series/Series-Parallel (S/SP) Compensated Wireless Battery Charger with Constant-Current and Constant-Voltage Outputs under Varying Coupling Condition

C. S. Wong, K. H. Loo

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

Abstract

In this paper, a dynamic series/series-parallel (S/SP) compensation network is proposed to achieve constant-current (CC) and constant-voltage (CV) outputs for battery charging applications. By modulating the switching frequency and the effective value of the compensation capacitance by switch-controlled capacitor, load-independent output voltage and current and zero-voltage-switching operation of the primary bridge can be maintained over varying load and coupling conditions. Due to the extra controllability of the parallel compensation capacitance, the efficiencies in CC and CV stages are analyzed. An experimental prototype with air gap ranging from 10-16 cm is built to verify the idea.

Original languageEnglish
Title of host publication2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9789075815375
Publication statusPublished - 6 Sep 2021
Event23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe - Ghent, Belgium
Duration: 6 Sep 202110 Sep 2021

Publication series

Name2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe

Conference

Conference23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe
Country/TerritoryBelgium
CityGhent
Period6/09/2110/09/21

Keywords

  • DC-DC converter
  • Electric vehicle
  • Resonant converter
  • Wireless power transmission

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

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