Vibration-to-electric energy conversion

被引:591
作者
Meninger, S [1 ]
Mur-Miranda, JO [1 ]
Amirtharajah, R [1 ]
Chandrakasan, AP [1 ]
Lang, JH [1 ]
机构
[1] MIT, Cambridge, MA 02139 USA
关键词
delay-locked-loop; low-power design; low-power dissipation; mixed signal; performance tradeoffs;
D O I
10.1109/92.920820
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
A system is proposed to convert ambient mechanical vibration into electrical energy for use in powering autonomous low power electronic systems, The energy is transduced through the use of a variable capacitor, Using microelectromechanical systems (MEMS) technology, such a device has been designed for the system. A low-power controller IC has been fabricated in a 0.6-mum CMOS process and has been tested and measured for losses. Based on the tests, the system is expected to produce 8 muW Of usable power. In addition to the fabricated programmable controller, an ultra low-power delay locked loop (DLL)-based system capable of autonomously achieving a steady-state lock to the vibration frequency is described.
引用
收藏
页码:64 / 76
页数:13
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