Current-Pumped Battery Charger
Liang-Rui Chen; Jin-Jia Chen; Neng-Yi Chu; Gia-Yo Han
Industrial Electronics, IEEE Transactions on
Volume 55, Issue 6, June 2008 Page(s):2482 - 2488
Digital Object Identifier   10.1109/TIE.2008.921685
Summary:A novel current-pumped battery charger (CPBC) is proposed in this paper to increase the Li-ion battery charging performance. A complete charging process, consisting of three subprocesses, namely: 1) the bulk current charging process; 2) the pulsed current charging process; and 3) the pulsed float charging process, can be automatically implemented by using the inherent characteristics of current-pumped phase-locked loop (CPLL). A design example for a 700-mA ldr h Li-ion battery is built to assess the CPBC's performance. In comparison with the conventional phase-locked battery charger, the battery available capacity and charging efficiency of the proposed CPBC are improved by about 6.9% and 1.5%, respectively. The results of the experiment show that a CPLL is really suitable for carrying out a Li-ion battery pulse charger.

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