Design and implementation of lithium-ion/lithium-polymer battery charger with impedance compensation

Author

Tseng, S.-Y. ; Shih, T.-C. ; Fan, S.-Y. ; Chang, G.-K.

Author_Institution

Dept. of Electr. Eng., Chang Gung Univ. Kwei-Shan, Taoyuan, Taiwan

fYear

2009

fDate

2-5 Nov. 2009

Firstpage

866

Lastpage

870

Abstract

In this paper, an impedance-compensated battery charger is presented to increase the effective capacity of the lithium-ion/lithium-polymer battery. The proposed charger adopts a pulsating current source associated with a pulsating voltage detector to dynamically estimate compensated impedance of battery. With this approach, the discharge-time is extended 12% and the overall battery capacitor is increased 10%. The experimental results based on a lithium-ion battery charger with 11.4 V/2.4 Ah battery capacity verify these significant improvements.

Keywords

battery chargers; constant current sources; power convertors; battery charger; impedance compensation; polymer battery; pulsating current source; pulsating voltage detector; Batteries; Buck converters; Circuits; Detectors; Frequency conversion; Impedance; Protection; Temperature; Testing; Voltage control; charger; impedance compendation; lithium-ion battery; lithium-polymer battery;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 2009. PEDS 2009. International Conference on

Conference_Location

Taipei

Print_ISBN

978-1-4244-4166-2

Electronic_ISBN

978-1-4244-4167-9

Type

conf

DOI

10.1109/PEDS.2009.5385827

Filename

5385827