摘要
针对智能充电器芯片待机时需要重复进行电池接入/移除检测、待机功耗较大的缺点,设计了一种新颖的利用锂电池温敏电阻端触发的电池接入/移除检测电路。该电路已被集成到一款基于UMC 0.35μm CMOS工艺的单节锂电池充电芯片上。测试结果表明,该芯片能迅速地检测出不同电量锂电池的接入/移除情况,相比传统的接入/移除检测电路,极大地降低了充电器待机时的功耗。
A Li-ion battery detection method was presented to reduce standby power consumption due to repeated battery detection.A novel temperature sensitive resistor triggered battery detection circuit was implemented in a single linear charger IC based on UMC＇s 0.35 μm CMOS process.Experimental results showed that the chip could quickly detect access or removal of the Li-Ion battery.Compared with the conventional battery detection method,the proposed circuit reduced standby power consumption of the charger significantly.
出处
《微电子学》
CAS
CSCD
北大核心
2013年第3期354-358,共5页
Microelectronics
基金
国家自然科学基金资助项目(60806043
60806009)
中央高校基本科研业务费专项资金资助项目(CHD2010JC077)
陕西省道路交通智能检测与装备工程研究中心开放基金资助项目
关键词
锂电池
充电器
恒流
恒压
电池检测
Li-ion battery
Charger
Constant current / constant voltage
Battery detection
