期刊
SENSORS AND ACTUATORS A-PHYSICAL
卷 145, 期 -, 页码 343-348出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2007.10.046
关键词
power supply system; rectenna; energy harvesting; MEMS; ubiquitous sensor
In this paper, a novel radio frequency (RF) induced power supply system for micro sensor nodes is presented. The system receives RF-electromagnetic wave of a mobile phone and rectifies it to generate a DC voltage by a rectenna (a rectifying circuit with an antenna). A charge pump (CP) circuit boosts up an output voltage of the rectenna, and the boosted voltage is stored to a large capacitor. When the boosted voltage of CP circuit reaches to an arbitrary voltage, a switch circuit between the output of CP circuit and an input of a voltage regulator turns on and supplies a regulated DC voltage to a load through the voltage regulator. The power supply system mounts one Schottky barrier diode (SBD) and three large value capacitors of surface mount devices (SMD) on deep holes fabricated by deep reactive ion etching (DRIE) process around CMOS circuits. The system was fabricated with 0.6 mu m-CMOS technology, and can supply well-regulated 4.0 V/1 mA DC power to the load for 10 ms periodically. (C) 2007 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据