Comparative Study on Charge Pump Circuits for Harvesting Solar Energy

DOI

10.2991/isrme-15.2015.207How to use a DOI?

Keywords

Energy harvesting, solar energy, sunlight, charge pump circuits

Abstract

Sunlight is one of useful energy harvesting sources that can be found everywhere. In spite of this ubiquitous availability, sunlight intensity is dynamically changing. Thus Maximum Power Point Tracking (MPPT) circuits are needed to harvest the maximum available energy from the solar cell, regardless of sunlight intensity variation. In this paper, three charge pump circuits for solar energy harvesting are discussed in terms of the output current and energy efficiency. The first charge pump can change its pumping frequency to track the maximum power point at a given sunlight condition. The second circuit can reconfigure its architecture according to the sunlight variation to maximize its output current with varying the sunlight intensity. In the third pump circuit, the reconfigurable architecture can be combined with the variable pumping frequency to keep the power efficiency high at any sunlight condition.

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/).

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TY  - CONF
AU  - JeaSang Song
AU  - Sang-Don Byeon
AU  - SangHak Shin
AU  - Son Ngoc Truong
AU  - Hyun-Sun Mo
AU  - Kyeong-Sik Min
PY  - 2015/04
DA  - 2015/04
TI  - Comparative Study on Charge Pump Circuits for Harvesting Solar Energy
BT  - Proceedings of the 2015 International Conference on Intelligent Systems Research and Mechatronics Engineering
PB  - Atlantis Press
SP  - 992
EP  - 995
SN  - 1951-6851
UR  - https://doi.org/10.2991/isrme-15.2015.207
DO  - 10.2991/isrme-15.2015.207
ID  - Song2015/04
ER  -