A new adaptive output voltage controller for fast battery charger

Kai Hui Chen, Tsomg Juu Liang, Bin Kun Huang

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

1 Citation (Scopus)

Abstract

A new adaptive output voltage controller for fast battery charger method is proposed in this paper. The charging power demanded is increased with larger battery capacity to shorten the charging time. To overcome the longer charging time with the constant voltage charger, the charging power may vary from high power to low power for the fast battery charger to shorten the battery charging time. In this paper a new adaptive output voltage control circuit is proposed. And the conversion efficiency of flyback converter under various power conditions is analyzed. Then the output voltage of flyback converter is controlled with the output power level to maintain high efficiency power conversion to achieve fast battery charging and higher efficiency. Finally, a 30W experimental prototype with output voltage range 5V∼15V is designed to verify the feasibility of the proposed controller. The maximum efficiency reaches 84.5% and the ligh load efficiency at 0.5W is 71%.

Original languageEnglish
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3345-3351
Number of pages7
ISBN (Electronic)9781509053667
DOIs
Publication statusPublished - 2017 May 17
Event32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States
Duration: 2017 Mar 262017 Mar 30

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Other

Other32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
CountryUnited States
CityTampa
Period17-03-2617-03-30

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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  • Cite this

    Chen, K. H., Liang, T. J., & Huang, B. K. (2017). A new adaptive output voltage controller for fast battery charger. In 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017 (pp. 3345-3351). [7931176] (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2017.7931176