用于可穿戴振动能量收集器的压电电磁协同能量提取电路

IF 1.9 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Microelectronics Journal Pub Date : 2024-08-29 DOI:10.1016/j.mejo.2024.106376

Yuqing Huang , Yanwei Sun , Jubing Xu , XiangZhan Hu , Yinshui Xia , Xiudeng Wang , Huakang Xia , Siguang An , Ge Shi

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引用次数: 0

摘要

本文介绍了一种压电电磁协同能量提取电路（PEC-EC），用于从手臂摆动中提取低频振动能量，供可穿戴设备使用。该电路可同时从压电传感器（PZT）和电磁线圈发生器（ECG）获取能量。当压电输出电压达到峰值时，峰值检测电路开始导电，此时压电材料的能量被提取出来。与此同时，PEC-EC 电路还可以采集电磁能。特别是，即使在低电磁电压输入时，也能通过设计的开关提取电磁电压。实验结果表明，只有当输入电压达到 0.5V 时，电路才会启动。电磁能量转换效率可达 53%，压电能量转换效率可达 56%。协同提取的有效性也通过实验验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Piezoelectric-electromagnetic collaborative energy extraction circuit for wearable vibration energy harvester

A piezoelectric-electromagnetic collaborative energy extraction circuit (PEC-EC) is presented in this paper to extract low-frequency vibration energy from arm swinging for wearable devices. This circuit simultaneously harvests energy from both the piezoelectric transducer (PZT) and electromagnetic coil generator (ECG). When the piezoelectric output voltage reaches its peak, the peak detection circuit becomes conductive, and the energy of the piezoelectric material is extracted at this moment. At the same time, the PEC-EC circuit can also harvest electromagnetic energy. Especially, even at low electromagnetic voltage input, the electromagnetic voltage can be extracted through the designed switch. The experimental results show that the circuit starts up only when the input voltage reaches 0.5V. The electromagnetic energy conversion efficiency can reach 53 %, and the piezoelectric energy conversion efficiency can reach 56 %. The effectiveness of collaborative extraction was also verified through experimental validation.

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来源期刊

Microelectronics Journal 工程技术-工程：电子与电气

CiteScore

4.00

自引率

27.30%

发文量

222

审稿时长

43 days

期刊介绍： Published since 1969, the Microelectronics Journal is an international forum for the dissemination of research and applications of microelectronic systems, circuits, and emerging technologies. Papers published in the Microelectronics Journal have undergone peer review to ensure originality, relevance, and timeliness. The journal thus provides a worldwide, regular, and comprehensive update on microelectronic circuits and systems. The Microelectronics Journal invites papers describing significant research and applications in all of the areas listed below. Comprehensive review/survey papers covering recent developments will also be considered. The Microelectronics Journal covers circuits and systems. This topic includes but is not limited to: Analog, digital, mixed, and RF circuits and related design methodologies; Logic, architectural, and system level synthesis; Testing, design for testability, built-in self-test; Area, power, and thermal analysis and design; Mixed-domain simulation and design; Embedded systems; Non-von Neumann computing and related technologies and circuits; Design and test of high complexity systems integration; SoC, NoC, SIP, and NIP design and test; 3-D integration design and analysis; Emerging device technologies and circuits, such as FinFETs, SETs, spintronics, SFQ, MTJ, etc. Application aspects such as signal and image processing including circuits for cryptography, sensors, and actuators including sensor networks, reliability and quality issues, and economic models are also welcome.