System Design of A Time-Controlled Broadband Piezoelectric Energy Harvesting Interface Circuit

被引：0

作者：

Cai, Yifeng ^{[1
]}

Manoli, Yiannos ^{[1
,2
]}

机构：

[1] Univ Freiburg, Dept Microsyst Engn IMTEK, Fritz Huettinger Chair Microelect, Hugstetter Str 55, D-79106 Freiburg, Germany

[2] HSG IMIT Inst Micromachining & Informat Technol, Villingen Schwenningen, Germany

来源：

2015 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) | 2015年

关键词：

DEVICES;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a novel system design of an adaptive time-controlled energy harvesting interface circuit for broadening the bandwidth of piezoelectric transducers. The proposed system monitors the excitation frequency and delays the switching activity accordingly to achieve optimal impedance matching. The system and the theory for calculating the time delay values are described in detail. Simulation result shows that the proposed system is able to generate nearly as much power as the theoretical limitation over a large range of excitation frequency, and the bandwidth increases from 3.7 Hz to more than 70 Hz.

引用

页码：237 / 240

页数：4