Comparative Study of AC-DC Rectifiers for Vibration Energy Harvesters

Research output: Contributions to collected editions/worksContributions in collection of commentariesResearch

Authors

Energy harvesting systems (EH) have attracted a lot of interest in recent years due to their important role in different applications. Typically, the output of vibrations EH is an alternating current (AC) that requires rectification to supply the electronic load. The rectifier architectures and selection of components have an influence on the energy harvesting system performance in terms of extracted output power and conversion efficiency. In this paper, comparisons between different self-powered rectifier architectures that are composed of diodes and MOSFETs are investigated with simulation and experimental evaluations. This study considers the effect of the load impedance as well as the input voltage levels on the system output power and efficiency. The investigated rectifiers are namely, diode bridge, 4P-MOSFET(4PR), 4N-MOSFET(4NR), 2N-MOSFET-2 diodes (ND), and Negative Voltage Rectifier (NVR). The experimental results show that at 2.5 V input voltage the NVR architecture has the highest output power and efficiency with 119.5 mW and 70.4%, respectively. At 2.5 V of the input voltage, the diode bridge rectifier exhibits an output power of 4S.51mWwhere76.SmW, 6S.93mW, and SO.2 mW are delivered by the 4NR, 4PR, and ND architectures. In terms of conversion efficiency, the diode bridge delivers 40.32 % whereas 4NR, 4PR, and ND architectures show an efficiency of 46.3 %, 44.32 %, and 55.97%, respectively.

Original languageEnglish
Title of host publicationProceedings - 2022 5th International Conference on Power Electronics and their Applications, ICPEA 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Publication date2022
ISBN (print)978-1-7281-6153-2
ISBN (electronic)978-1-7281-6152-5
DOIs
Publication statusPublished - 2022
Externally publishedYes
Event5th International Conference on Power Electronics and their Applications, ICPEA 2022 - Hail, Saudi Arabia
Duration: 29.03.202231.03.2022
https://ieeexplore.ieee.org/xpl/conhome/9791119/proceeding
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9791178

Bibliographical note

Funding Information:
The authors thank the German Academic Exchange Service (DAAD) for their financial support work within the cooperation project "International Summer School Sensors for Body Area Networks (BASNet)" within the program: "Deutsch-Arabische Transformationspartnerschaft, Programmlinie 2: Kurzmaßnahmen 2021".

Publisher Copyright:
© 2022 IEEE.

    Research areas

  • Energy Harvesting, Energy Management, Passive and Active Rectifier, Vibration Energy Harvesting, Wireless Sensor Node
  • Engineering