MCP-SSHI接口电路实现多通道宽频压电能量的高效提取  

Efficient Extraction of Multi-Channel Wide-Frequency Piezoelectric Energy by MCP-SSHI Circuit

作　　者：李继祯 胡宁[1] 吉振峰 张诗琪 赵晨曦 周美彤 吴良科[1] 牟笑静 LI Jizhen;HU Ning;JI Zhenfeng;ZHANG Shiqi;ZHAO Chenxi;ZHOU Meitong;WU Liangke;MU Xiaojing(College of Aerospace Engineering,Chongqing University,Chongqing 400044,China;National Key Laboratory of New Micro/Nano Devices and System Technology,Chongqing University,Chongqing 400044,China)

机构地区：[1]重庆大学航空航天学院,重庆400044 [2]重庆大学新型微纳器件与系统技术国防重点学科实验室,重庆400044

出　　处：《压电与声光》2025年第1期181-189,共9页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金联合基金重点项目(U22B2089);重庆市杰出青年基金项目(CSTB2022 NSCQ-JQX0006)。

摘　　要：随着物联网和智能系统的快速发展,对传感器网络中能量采集技术的需求不断增加。针对多通道宽频压电能量信号特征差异大、能量提取效率低的问题,提出了一种适用于弱耦合环境的多通道并联同步开关电感(MCP-SSHI)接口电路。该电路保持了高模块的拓展性和结构的简洁性,同时还具备处理任意相位关系(0~2π)多通道输入电压的能力。测试结果表明,在处理六路压电能量收集器(PEH)信号时,MCP-SSHI电路可高效提取多通道电能,其能量提取效率高达79.96%,是传统接口电路功率增益的3.24倍。With the rapid advancement of the Internet of Things(IoT)and intelligent systems,the demand for energy-harvesting technologies in sensor networks is escalating.To address the challenges of significant feature divergence in multi-channel broadband piezoelectric energy signals and low energy extraction efficiency under weakly coupled conditions,this paper proposes a multi-channel parallel synchronized switch harvesting on inductor(MCP-SSHI)interface circuit.The circuit retains high modular scalability and structural simplicity while enabling the processing of multi-channel input voltages with arbitrary phase relationships(0-2π).In test results on processing signals from six piezoelectric energy harvesters(PEH),the MCP-SSHI circuit efficiently extracted multi-channel electrical energy,with an energy extraction efficiency of as high as 79.96%,which was 3.24 times the power gain of traditional interface circuits.

关 键 词：压电能量收集 电源管理 多通道能量提取 并联同步开关感应(P-SSHI) 自供电 

分 类 号：TN384[电子电信—物理电子学] TN86[电气工程—电力系统及自动化] TM619