Design of a multi-Mode and high-stability Linear Charger for Lithium-ion Batteries

摘要：

In this paper, a monolithic linear charger for single-cell Lithium-ion batteries is presented. It is capable of operating within USB power specifications and adopts multiple charging modes (constant-current and constant-voltage). Due to novel constant-current and constant-voltage charging circuits, it achieves high stability and high accuracy charging voltage. In addition, an internal thermal feedback loop reduces the programmed charging current if the die temperature attempts to rise above a preset value of approximately 120J. The chip is implemented in a CSMC 0.5um CMOS mixed-signal process, experimental results shows the charging current of constant-current mode is 497 mA and the final voltage of the battery after is 4.191 V.

作者: Lan Dai Ke-Qing Ning Yan-Feng Jiang

作者单位: Department of Microelectronics, Information Engineering college, North China University of Technology, Beijing, 100144, China

会议类型: 国际会议

会议名称: 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology(第十届固态和集成电路技术国际会议 ICSICT-2010)

会议地点: 上海

会议语种:英文

页码: 345-347

在线出版日期: 2010-11-01（万方平台首次上网日期，不代表论文的发表时间）