基于P-SSHI的单电感多输入压电能俘获电路  

P-SSHI Based Multi-Input Piezoelectric Energy Harvesting Circuit with Single-Inductor

作　　者：肖长建 夏银水[1] XIAO Changjian;XIA Yinshui(Faculty of Electrical Engineering and Computer Sciences,Ningbo University,Ningbo Zhejiang 315211,China)

机构地区：[1]宁波大学信息科学与工程学院,浙江宁波315211

出　　处：《传感技术学报》2025年第2期332-339,共8页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目和区域创新联合基金重点支持项目(62131010,U22A2013);浙江省自然科学基金项目(LR22F010001,LZ20F010006)。

摘　　要：提出了一种用于压电能量采集的自供电多输入并联开关电感(Multi-Input Parallel Synchronized Switching Harvesting on Inductor,MIP-SSHI)接口电路。所提出的MIP-SSHI电路具有自供电,并共享一个电感从多个压电换能器(Piezoelectric Transducer,PZT)中提取能量,可以处理多个PZT同时访问电感的冲突,避免使用额外的电感访问控制电路。仿真和实验表明,MIP-SSHI电路可以在任意相位情况下从多个PZT中提取能量。较之于单个PZT,所提出的MIP-SSHI电路的最大输出功率可以达到SEH电路的3.6倍。A self-powered multi-input parallel switched inductor multi-input parallel synchronized switching harvesting on inductor(MIP-SSHI)interface circuit for piezoelectric energy harvesting is presented,which is self-powered and uses a single inductor to extract energy from multiple Piezoelectric Transducer(PZTs).It can handle the inductor access confliction for multiple PZTs and avoid the use of addi-tional inductor access control circuits.Simulations and experiments show that the MIP-SSHI circuit can extract energy from multiple PZTs in any phase case.For a single PZT,the maximum output power of the proposed MIP-SSHI circuit can reach 3.6 times of the SEH circuit.

关 键 词：能量采集 多输入 压电换能器 并联开关电感(P-SSHI) 

分 类 号：TN712.5[电子电信—电路与系统]