自供电式并联电感同步开关压电能量收集电路实现方法研究

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (9) : 120-124.

论文

张淼，孟庆丰，王宏金

作者信息 +

Self-Powered Synchronized Switch Control of Parallel Inductor for Piezoelectric Energy Harvesting Circuit

Zhang Miao, Meng Qing-feng, Wang Hong-jin

Author information +

文章历史 +

摘要

针对并联电感同步开关（SSHI）压电能量收集电路在实际中不易实现，需要外接电源等问题，在通过ANSYS的谐响应分析和静态分析求解出压电能量收集器自由电容的基础上，设计了一种由能量收集部分、同步开关控制电压生成部分和直流供电部分组成的自供电式SSHI电路:采用二阶R-C移向电路，过零比较器和异或门电路产生的输出电压来控制双向开关适时闭合，运用全桥整流（AC-DC）能量收集电路为所用的低功耗电子器件供电。通过实验成功实现了SSHI压电能量收集电路的功能，有效地提高了能量收集效率，为SSHI能量收集电路在实际中的应用提供了一种新的、易于实现的方法。

Abstract

In order to use the circuit of synchronized switch harvesting on inductor (SSHI) for piezoelectric energy in practice, a new self-powered SSHI circuit is proposed based on solving static capacitance of piezoelectric energy harvester by harmonic and static analysis of ANSYS. The self-powered circuit consists of energy harvesting part, control voltage generating part and DC power supply part. When Output voltage generating by the two-step R-C shift circuit, the comparator and XOR gate turns on the switch at the appropriate time and AC-DC energy harvesting circuit supplies for low-power electronic devices, the function of SSHI piezoelectric energy harvesting circuit can be achieved. The experimental results show that the proposed circuit can improve the energy harvesting efficiency, which provides a new and easy method for the application of SSHI in practice.

导出引用

张淼，孟庆丰，王宏金. 自供电式并联电感同步开关压电能量收集电路实现方法研究[J]. 振动与冲击, 2015, 34(9): 120-124

Zhang Miao, Meng Qing-feng, Wang Hong-jin. Self-Powered Synchronized Switch Control of Parallel Inductor for Piezoelectric Energy Harvesting Circuit[J]. Journal of Vibration and Shock, 2015, 34(9): 120-124

参考文献

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