一种低功耗自供电的压电能量收集前端电路设计  

Design of a Low-power and Self-powered Piezoelectric Energy Harvesting Interface Circuit

作　　者：谢祖帅 张硕[2] 刘璐[1] 郭静静 王子轩[1] 蔡志匡[1] XIE Zushuai;ZHANG Shuo;LIU Lu;GUO Jingjing;WANG Zixuan;CAI Zhikuang(School of Integrated Circuit Science and Engineering,Nanjing University of Posts and Telecommunications,Jiangsu 210042,China;Southeast University,Microelectronics and Solid State Electronics,Jiangsu 214135,China.)

机构地区：[1]南京邮电大学集成电路科学与工程学院,江苏210042 [2]东南大学微电子学与固体电子学院,江苏214135

出　　处：《集成电路应用》2023年第11期14-15,共2页Application of IC

基　　金：江苏省青年基金项目(BK20220398);江苏省高等学校自然科学研究面上项目(22KTD510010)。

摘　　要：阐述一种低功耗自供电的压电能量收集前端电路设计,该设计可以应用于可穿戴设备、桥梁监测等振动能广泛存在的场景,振动能经压电换能器转化为电能后,被该能量收集电路收集,经调制后可输出能量维持传感器节点正常工作以替代传统电池,使传感器节点免于电池寿命和更换成本带来的使用限制。该电路采用CMOS 180nm工艺,芯片230μm×350μm,整流导通压降<1V,整流峰值效率92%。This paper expounds a low-power self-powered piezoelectric energy collection frontend circuit design that can be applied to scenarios where vibration energy is widely present,such as wearable devices,bridge monitoring,etc.The vibration energy is converted into electrical energy through piezoelectric transducers and collected by the energy collection circuit.After voltage regulation,it can act as the power source to maintain the normal operation of sensor nodes,replacing traditional batteries,Exempt sensor nodes from usage limitations caused by battery life and replacement costs.The circuit adopts CMOS 180nm technology with a die area of 230μm×350μm.The achieved forward voltage drop is less than 1V with a peak efficiency of 92%.

关 键 词：电路设计 自供电 压电能量收集 前端电路 整流器 

分 类 号：TN402[电子电信—微电子学与固体电子学] TN722.71