A Design of an Optimal Battery Pulse Charge System by Frequency-Varied Technique
Liang-Rui Chen
Industrial Electronics, IEEE Transactions on
Volume 54, Issue 1, Feb. 2007 Page(s):398 - 405
Digital Object Identifier   10.1109/TIE.2006.888796
Summary:In this paper, a variable frequency pulse charge system (VFPCS), that can detect and dynamically track the optimal charge frequency, is proposed to improve the battery-charge response. To assess the system performance, a prototype of the VFPCS for 600-mAh lithium-ion battery is designed and implemented. Compared with the standard constant-current and constant-voltage charge system, the charge speed of the proposed VFPCS is improved above 24%, while the proposed VFPCS is improved above 10% compared with the conventional fixed-frequency pulse charge system. The results indicate that the VFPCS can actually provide pulse with optimal frequency to charge the battery and the charge response is improved

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