Title :
Balance charging circuit for charge equalization
Author :
Hsieh, Yao C. ; Moo, Chin S. ; Tsai, S.
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
A nondissipative balance charging circuit based on buck-boost topology is proposed for charge equalization control for the series-connected batteries with serial charging scheme. The sub-circuit associated with each battery acts as a current diverter to divert the excessive charging current from the satiated batteries to the hungry ones. To equalize the state-of-charge among the batteries, the balance charging circuit regulates the average charging current in a dynamical manner. The applicability of this approach is confirmed by experiments
Keywords :
DC-DC power convertors; battery chargers; electric current control; PWM controller; average charging current regulation; buck-boost topology; charge equalization control; current diverter; excessive charging current diversion; nondissipative balance charging circuit; serial charging scheme; series -connected batteries; series-connected batteries; sub-circuit; Battery powered vehicles; Circuit topology; Electric vehicles; Electrochemical processes; Electrodes; Energy dissipation; Laboratories; Power electronics; Vehicle safety; Voltage;
Conference_Titel :
Power Conversion Conference, 2002. PCC-Osaka 2002. Proceedings of the
Conference_Location :
Osaka
Print_ISBN :
0-7803-7156-9
DOI :
10.1109/PCC.2002.998132
