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A Self-Powered and Efficient Rectifier for Electromagnetic Energy Harvesters
Date
2014-11-05
Author
Ulusan, Hasan
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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Cite This
This paper presents an interface circuit for efficient rectification of voltages from electromagnetic (EM) energy harvesters operating with very low vibration frequencies. The interface utilizes a dual-rail AC/DC doubler which benefits from the full cycle of the input AC voltage, and minimizes the forward bias voltage drop with an active diode structure. The active diodes are powered through an AC/DC quadrupler with diode connected (passive) transistors. The interface system has been validated to drive 22 mu A load at 1.1 V, with 86% efficiency, when 0.1g vibration is applied to an in house energy harvester at 8 Hz. The circuit is functional down to 150 mV input. The rectified voltage deviates at most 38 mV from the theoretical value of twice the input peak voltage. The system was demonstrated for feasibility in portable applications through a prototype placed to the waist of a jogger.
Subject Keywords
Vibration-based energy harvesting
,
Electromagnetic power generation
,
Low voltage AC/DC conversion
,
Self-powered rectifier
URI
https://hdl.handle.net/11511/56002
Conference Name
13th IEEE Sensors Conference
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar
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H. Ulusan, O. Zorlu, A. Muhtaroglu, and H. Külah, “A Self-Powered and Efficient Rectifier for Electromagnetic Energy Harvesters,” presented at the 13th IEEE Sensors Conference, Valencia, SPAIN, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56002.
