A novel battery charger circuit with an improved parallel-loaded resonant converter for rechargeable batteries in mobile power applications

Ying Chun Chuang, Hung Shiang Chuang, Yi Hung Liao, Chun Hsiang Yang, Yung Shan Wang

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

3 Scopus citations

Abstract

This work proposes a novel battery charger circuit with an improved parallel-loaded resonant converter use in rechargeable batteries in mobile power applications. The proposed topology is composed of an improved parallel-loaded resonant inverter and a bridge rectifier. The output voltage of the improved parallel-loaded resonant converter is filtered by an electrolytic capacitor. This topology has advantages over the traditional parallel-loaded resonant converter of smaller size, lower weight and lower cost. The operating principles of the proposed charger circuit are thoroughly analyzed. A prototype charger circuit with the improved parallel-loaded resonant converter implemented for a 12V 12000mAh rechargeable battery of mobile power is constructed and tested to verify the theoretical predictions. The measured energy conversion efficiency of the improved parallel-loaded resonant topology reaches up to 91.2%. The test results demonstrate that the novel topology provides a satisfactory performance. The improved parallel-loaded resonant converter has great potential for use in power-related devices in electronic products, such as standby power supplies for laptop computers, communication equipment, consumer electronics, and telecom power supplies.

Original languageEnglish
Title of host publicationProceedings - 2014 IEEE 23rd International Symposium on Industrial Electronics, ISIE 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages353-359
Number of pages7
ISBN (Print)9781479923991
DOIs
StatePublished - 2014
Event2014 IEEE 23rd International Symposium on Industrial Electronics, ISIE 2014 - Istanbul, Turkey
Duration: 1 Jun 20144 Jun 2014

Publication series

NameIEEE International Symposium on Industrial Electronics

Conference

Conference2014 IEEE 23rd International Symposium on Industrial Electronics, ISIE 2014
Country/TerritoryTurkey
CityIstanbul
Period1/06/144/06/14

Keywords

  • Battery charger
  • Mobile power
  • Rechargeable battery
  • Resonant converter

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