半导体学报2007，Vol.28Issue(7)：1030-1035,6.
恒流/恒压充电方式的锂电池充电器芯片
Chip Design of Li-Ion Battery Charger Operating in Constant-Current/Constant-Voltage Modes
陈琛 1何乐年1
作者信息
- 1. 浙江大学超大规模集成电路设计研究所,杭州,310027
- 折叠
摘要
Abstract
A design for a Li-ion battery charger IC that can operate in a constant current-constant voltage (CC-CV) charge mode is proposed. In the CC-CV charge mode, the charger IC provides a constant charging current at the beginning, and then the charging current begins to decrease before the battery voltage reaches its final value.After the battery voltage reaches its final value and remains constant, the charging current is further reduced. This approach prevents charging the battery with full current near its saturated voltage, which can cause heating. The novel design of the core of the charger IC realizes the proposed CC-CV charge mode. The chip was implemented in a CSMC 0.6μm CMOS mixed signal process. The experimental results verify the realization of the proposed CC-CV charge mode. The voltage of the battery after charging is 4. 1833V.关键词
锂电池充电器/恒流-恒压充电模式/CMOS模拟电路Key words
Li-ion battery charger/constant current-constant voltage charge modes/CMOS analog circuit分类
信息技术与安全科学引用本文复制引用
陈琛,何乐年..恒流/恒压充电方式的锂电池充电器芯片[J].半导体学报,2007,28(7):1030-1035,6.
