摘要
介绍了一种多悬臂梁压电换能器电路。与标准能量采集电路(SEH)相比,三悬臂梁压电换能器电路的理论最大平均采集功率提高了300%。利用Multisim软件仿真,结果表明,三悬臂梁压电换能器电路的最终输出电压为SEH电路的2.11倍;进一步搭建实际电路,其最终最大输出功率为SEH电路的3.12倍,能量转化与利用效率显著提高。
This paper reports a piezoelectric transducer circuit based on multi-cantilever consisting of piezoelectric transducer module,rectifier module,storage module,voltage regulator module and load module.Comparing with the standard energy harvesting（SEH）circuit,the theoretical value of maximum average power harvesting of piezoelectric transducer circuit based on three cantilevers was increased by 300%.Simulation results by using Multisim software show that the output voltage of piezoelectric transducer circuit based on three cantilevers was 2.11 times as much as that of SEH circuit.Further,practical circuits was fabricated and the experimental results prove that the output power of piezoelectric transducer circuit based on three cantilevers was 3.12 times as much as that of SEH circuit.The efficiency of energy conversion and utilization were significantly improved.
出处
《压电与声光》
CAS
CSCD
北大核心
2015年第2期342-345,共4页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(51205276
51205275)
国家博士后科学基金资助项目(20110491629
2013T60268)
山西省青年科学基金资助项目(2012021021-5
2013021017-1)
山西省科技重大专项基金资助项目(No.20121101004)
山西省高等学校特色重点学科建设基金资助项目(No.晋教财[2012]45号)
关键词
压电换能器
多悬臂梁
标准能量采集电路
电压调整电路
输出功率
piezoelectric transducer
multi-cantilever
standard energy harvesting circuit
voltage regulator circuit
output power
