RF-Powered Li-Ion Battery Charger for Biomedical Applications

被引：5
|
作者：
Chuang, Chih-Wen [1 ]
Chua, Ericson Go [1 ]
Lai, Yu-Sheng [1 ]
Fang, Wai-Chi [1 ]
机构：
[1] Natl Chiao Tung Univ, Dept Elect Engn, Hsinchu, Taiwan
来源：
2009 IEEE/NIH LIFE SCIENCE SYSTEMS AND APPLICATIONS WORKSHOP | 2009年
关键词：
D O I：
10.1109/LISSA.2009.4906742
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
An integrated RF-powered Li-ion battery charger solution has been developed for biomedical applications. RF energy received through an antenna is rectified, regulated, and passed on to a battery charger circuit that charges a Li-ion battery efficiently and accurately. The charger system has been implemented using UMC 90nm BiCMOS process library. Experimental results show that a battery model with internal resistance of 300m Omega and internal capacitance of 10mF can be charged to its full capacity at 3.5V in 0.2ms by a 2mW 10MHz RF power source referred from the antenna. The implemented charger circuit consumes only 240 uW.
引用
收藏
页码：187 / 189
页数：3
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