A Resistance-Compensated Phase-Locked Battery Charger

Author

Chen, L.R. ; Han, J.Y. ; Jaw, J.L. ; Chou, C.P. ; Liu, C.S.

Author_Institution

Dept. of Aeronaut. Eng., Nat. Formosa Univ., Yunlin

fYear

2006

fDate

24-26 May 2006

Firstpage

1

Lastpage

6

Abstract

The resistance-compensated phase-locked battery charger (RC-PLBC) proposes as a new and fast charging circuit topology for Li-ion battery in this paper. The circuit topology of the proposed RC-PLBC is not only the same as that of a phase-locked loop (PLL) but also can compensate the pack resistance of Li-ion batteries. Therefore, a complete charging process, consisting of three sub-processes: bulk current charge, variable current charge and float charge, can be automatically implemented with fast charging behavior. The mathematical model of the proposed RC-PLBC is driven, and then the stability of the RC-PLBC is discussed. After that, a complete circuit design procedure is presented to guild the engineer to design a desired RC-PLBC. Finally, a prototype of RC-PLBC is designed according the presented design procedure and realized to verify the charging performance. Comparing with a typical phase-locked battery charger, the charge speed of the proposed RC-PLBC is improved by 18% as well as the safety is held on

Keywords

battery chargers; network synthesis; network topology; phase locked loops; secondary cells; PLL; bulk current charge; charging circuit topology; float charge; lithium-ion battery; resistance-compensated phase-locked battery charger; safety; variable current charge; Aerospace engineering; Batteries; Circuit topology; Disaster management; Educational institutions; Frequency locked loops; Military aircraft; Phase locked loops; Prototypes; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2006 1ST IEEE Conference on

Conference_Location

Singapore

Print_ISBN

0-7803-9513-1

Electronic_ISBN

0-7803-9514-X

Type

conf

DOI

10.1109/ICIEA.2006.257277

Filename

4025878