Title :
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
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;
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
DOI :
10.1109/PEDS.2009.5385827
