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An electromagnetic energy harvesting system for low frequency applications with a passive interface ASIC in standard CMOS
Date
2012-12-01
Author
Rahimi, Arian
Zorlu, Ozge
Muhtaroglu, Ali
Külah, Haluk
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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This paper presents a compact energy harvesting system, which consists of an electromagnetic (EM) generator converting ambient low frequency vibrations to DC voltage by using a highly efficient full-wave rectifier in a System-on-Package (Sop). Frequency Up-Conversion technique has been utilized by the in-house EM transducer to harvest energy from very low frequency vibrations (<5 Hz). The interface ASIC is a passive rectifier based on the boot-strap rectification (BSR) technique to decrease the effective threshold voltage of the utilized diodes, attaining a high AC/DC conversion efficiency in a standard 0.35 mu m CMOS process. The energy harvesting system has been tested within a frequency range of 2-10 Hz. The autonomous system with a volume of 21 cm(3), delivers 128 mu W DC power to an 80 mu A load at an external vibration frequency of 2 Hz and 72 mg peak acceleration while a 1.6V DC voltage is generated. The maximum overall power density is measured as 6.1 mu W/cm(3). Furthermore, the reliable operation of a commercially available temperature sensor, as a realistic load, has also been demonstrated by using the energy harvester as a DC supply.
Subject Keywords
Vibration-based energy harvesting
,
Electromagnetic power generation
,
Mechanical frequency up-conversion
,
AC/DC conversion
,
Passive rectification
URI
https://hdl.handle.net/11511/43597
Journal
SENSORS AND ACTUATORS A-PHYSICAL
DOI
https://doi.org/10.1016/j.sna.2012.03.019
Collections
Department of Electrical and Electronics Engineering, Article
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BibTeX
A. Rahimi, O. Zorlu, A. Muhtaroglu, and H. Külah, “An electromagnetic energy harvesting system for low frequency applications with a passive interface ASIC in standard CMOS,”
SENSORS AND ACTUATORS A-PHYSICAL
, pp. 158–166, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/43597.