Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Design of DC-DC Converter to Charge and Discharge Lithium Battery Using Isolated Boost Converter and Forward Converter
Authors Hee-Sun Kim ; Dae-Taek Chung ; Soon-Chan Hong
DOI 10.6113/TKPE/2010.15.6.441
Page pp.441-450
ISSN 1229-2214
Keywords Charge; Discharge; Lithium battery; Forward converter; Isolated boost converter
Abstract Lithium battery is widely used as the power source of various electronic devices. The formation process which is the repeated charging and discharging process is essential in the production of lithium battery. In this paper, it is proposed and designed the DC-DC converter that can charge and also discharge the lithium battery in one converter. The proposed converter is designed by considering the charge/discharge characteristics of the lithium battery. The converter is operated as a forward converter in charging process and a electrically isolated boost converter in discharging process. Based on the analyses, the number of transformer turns, inductor, capacitor, and switching devices are designed. Finally, the validity of the design for the proposed converter is verified by both simulations and experiments.