植入式集成磁耦合谐振无线电能传输和电源管理研究

项目名称： 植入式集成磁耦合谐振无线电能传输和电源管理研究

项目编号： No.61306032

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 程瑜华

作者单位： 杭州电子科技大学

项目金额： 25万元

中文摘要： 植入式医疗器件在疾病治疗、健康监测、提高对人体自身和生物体认识等方面的作用越来越重要，但是植入式器件的供电是限制其往更小、更安全方向发展的瓶颈之一。本项目拟采用磁耦合谐振无线电能传输方式，替代传统的电感耦合方式来达到更高的传输效率；采用无线电能接收线圈与低功耗电源管理电路集成在一起的方式，减小植入式器件的尺寸。通过研究磁耦合谐振无线电能传输的理论模型,提高PCB线圈和集成线圈品质因数和电感值的方法，提高传输效率；设计低功耗整流器、电压倍增器，并且根据接收电压大小，自动选择整流器或电压倍增器，解决传输稳定性和效率的矛盾；研究无线电能传输辐射对人体的影响等内容，最终实现一个可用于植入式器件的集成磁耦合谐振无线电能传输原型，实现毫瓦量级的无线能量接收，给后续信号获取、处理电路提供3.3V稳定电源电压。通过本项目研究，有望从理论上和技术上突破当前植入式器件微型化、高效率、安全、稳定电源供电的难题。

中文关键词： 植入式器件；无线电能传输；线圈；效率；

英文摘要： The power supply is one of the bottle necks of reducing the size and improving the security of the Implantable Medical Devices (IMD) which play a more and more important role in disease treatment, health monitoring and awareness on the human body and organisms. In this project, in order to improve the power transmission efficiency, the magnetic resonance-based wireless power transmission method will be used; in order to reduce the size, the receiving coils are integrated with the power management circuits together. A prototype of integrated magnetic resonance-based wireless power transmission IMD will be realized by studying the following contents: the study on the theoretical models of the wireless power transmission, the methods of improving the PCB coils and integrated coils' quality factor and inductance value to improve the transmission efficiency; the design of low-power rectifier and voltage doubler, which will be selected automatically in accordance with the received voltage magnitude to solve the contradiction between the stability and efficiency of the wireless power transmission; the study on the impact of the radiation on the human body, etc. The prototype will realize mWs-order power transmission and a 3.3V stable power supply output for the subsequent signal acquisition and processing circuits. Thr

英文关键词： implantable device；wireless power transfer；coil；efficiency；