Full-Wave Rectifier with Zero Standby Current for Vibrational Energy Harvesting Systems

DOI

10.2991/eers-15.2015.16How to use a DOI?

Keywords

full-wave rectifier; vibrational energy; energy harvesting; vibration detector; active diode

Abstract

In this paper, a full-wave rectifier (FWR) with zero standby leakage current for vibrational energy harvesting systems is presented. Conventional active FWRs where active diodes are used to reduce the diode voltage drop and increase the system efficiency are usually powered from the output. Nevertheless, a major drawback is that these FWRs consume current from the output storage capacitor even when the system is not harvesting any energy. To overcome the problem, a technique using a simple vibration detector consisting of a peak detector and a level shifter is proposed. The vibration detector detects whether vibrational energy exists or not in the input terminal and disables the comparators when there is no vibrational energy. The proposed FWR with the vibration detector is designed using a 0.35-µm CMOS process. Simulation results have verified the effectiveness of the proposed scheme. The maximum power efficiency of the designed FWR is 99.2%. By using the proposed vibration detector, a decrease in standby leakage current by approximately 3,200 times can be achieved.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Eunjung Yoon
AU  - Minjae Yang
AU  - Chonggun Yu
PY  - 2015/09
DA  - 2015/09
TI  - Full-Wave Rectifier with Zero Standby Current for Vibrational Energy Harvesting Systems
BT  - Proceedings of the 2015 International Conference on Environmental Engineering and Remote Sensing
PB  - Atlantis Press
SP  - 62
EP  - 65
SN  - 2352-538X
UR  - https://doi.org/10.2991/eers-15.2015.16
DO  - 10.2991/eers-15.2015.16
ID  - Yoon2015/09
ER  -