中文摘要：

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。

英文摘要：

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.