传感技术学报2025，Vol.38Issue(5)：794-801,8.DOI:10.3969/j.issn.1004-1699.2025.05.005
一种新型自供电同步电感开关能量采集功率提取电路
A New Self-Powered Synchronized Inductive Switching Interfaced Circuit for Piezoelectric Energy Harvesting
摘要
Abstract
In order to improve the conversion output efficiency of the vibration energy harvesters,a new self-powered and rectifier-free synchronized switching and discharging to a storage capacitor through an inductor(RF-SSDCI)interfaced circuit for piezoelectric energy harvesting is presented.The circuit contains a self-powered switching module consisting of only capacitors and transistors,eliminating the traditional rectifier bridge structure,which is more conducive to miniaturization and integration.When the output voltage across the piezoelectric element reaches a positive/negative peak,the circuit not only extracts energy through a single inductor,but also reduces the power loss by rectifying the structure so that the inductor charges the energy storage capacitor without switching control,reducing the im-pact of switching on time on the circuit power extraction.The RF-SSDCI achieves a maximum extraction power of 63.6 μW,which is nearly 109.2%and 135.5%higher than the standard energy harvesting(SEH)circuit and self-powered optimized synchronous charge ex-traction(SP-OSCE)circuit,respectively.关键词
压电能量采集器/自供电同步电感开关电路/仿真和实验验证/效率提高/去整流桥Key words
piezoelectric energy harvester/energy self-powered synchronized inductive switching interfaced circuit/simulation and ex-periment validation/efficiency improvement/rectifier-free分类
信息技术与安全科学引用本文复制引用
江一帆,王光庆,周宇洋,侯露刚,李广博..一种新型自供电同步电感开关能量采集功率提取电路[J].传感技术学报,2025,38(5):794-801,8.基金项目
国家自然科学基金资助项目(52475611,51777192) （52475611,51777192）
浙江省自然科学基金资助项目(LY24E070002) （LY24E070002）
