A Flexible Power Module for Wearable Medical Devices with Wireless Recharging using Corrugated Flexible Coils

Guangqi Ouyang, G. Ezhilarasu, Henry Sun, Haoxiang Ren, Yu-Tao Yang, S. Iyer
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引用次数: 3

Abstract

In this work, flexible corrugated interconnection and Fan-Out Wafer-Level packaging platform called FlexTrate™ is used to fabricate a thin film, flexible, magnetic resonant wireless recharging module for charging commercial Li-ion battery at an output of 3.3 V constant voltage. A power management IC (LDO bare die LDBL20) for voltage regulation, a fullwave bridge rectifier, a Si-DT capacitor dies for antenna matching. The coil antenna is also fabricated on the PDMS substrate using standard BEOL Cu metallization. The designed power module can deliver 3.9 mW regulated power.
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一种可穿戴医疗设备用波纹柔性线圈无线充电的柔性电源模块
在这项工作中,FlexTrate™采用柔性波纹互连和扇出晶圆级封装平台制造了一种薄膜柔性磁谐振无线充电模块,用于在3.3 V恒压输出下为商用锂离子电池充电。一个用于电压调节的电源管理IC (LDO裸模LDBL20),一个全波桥式整流器,一个用于天线匹配的Si-DT电容模。线圈天线也在PDMS衬底上制造,使用标准BEOL铜金属化。设计的电源模块可提供3.9 mW的稳压功率。
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