New Li-Ion Battery Charger Based on Charge-Pump Techniques

摘要：

This paper presents a new Li-Ion battery charger using charge-pump techniques. It has small chip size and simple structure. Besides, the proposed charger provides basic functions with voltage and current detecting, end-of-charge detecting and automatic charging speed control. The charger is operated in mixed method and supported from trickle/large constant-current mode to constant-voltage mode with different charging rates. This charger is implemented in TSMC 0.35μm CMOS process with 5V power supply. Its output voltage is over or equal to 4.2V and maximum charging current reaches 700mA. It has 837mW chip power dissipation and 67.89％ power efficiency and chip area is 1.455×1.348 mm2 only.

作者: Yuh-Shyan Hwang Shu-Chen Wang Fong-Cheng-Yang Jiann-Jong Chen Wen-Ta Lee

作者单位: Department of Electronic Engineering National Taipei University of Technology Taipei, Taiwan, China

会议类型: 国际会议

会议名称: 2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)

会议地点: 广西桂林

会议语种:英文

页码: 2259-2262

在线出版日期: 2006-06-25（万方平台首次上网日期，不代表论文的发表时间）