Study on Wireless Power Transmission for Gastrointestinal Microsystems Based on Inductive Coupling
摘要：Wireless power transmission based on inductive coupling for remotely implanted micro devices has been considered in this paper. The receiving coil, integrated in microsystems and the external transmitting coil compose a loosely coupled transformer. The coupling coefficient was calculated and measured on spacing misalignments. The geometric size of transmitting coil was analyzed for the target of remotely delivering power. The received power was maximized by choosing appropriate value of frequency, tuning capacitance and the load resistance. A conventional full bridge rectifier circuit was employed to convert ac to dc voltage. The Received dc power was up to 160 mW with a transmitting voltage of 5 Vrms when the receiving coil was placed at the center of the transmitting coil.This may meet the requirement of some microsystems for high power over a long time.
机标关键词：Inductive Couplingcoupling coefficientpower transmissioninductive couplingloosely coupledload resistancereceived powerhigh power
分类号：R318.6(医用一般科学)
资助基金：国家高技术研究发展计划(863计划)(2004AA404013)
论文发表日期：2007-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：8( 71-78 )
英文信息