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http://dx.doi.org/10.5573/ieek.2013.50.6.105

A Micro Solar Energy Harvesting Circuit with MPPT Control  

Yoon, Eun-Jung (Dept. of Electronics Engineering, University of Incheon)
Park, Jong-Tae (Dept. of Electronics Engineering, University of Incheon)
Yu, Chong-Gun (Dept. of Electronics Engineering, University of Incheon)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.6, 2013 , pp. 105-113 More about this Journal
Abstract
In this paper a micro solar energy harvesting system with MPPT(Maximum Power Point Tracking) control using a miniature PV(photovoltaic) cell of which the output is less than 0.5V is proposed. The MPPT control is implemented using linear relationship between the open-circuit voltage of a PV cell and its MPP(Maximum Power Point) voltage such that a pilot PV cell can track the MPP of the main PV cell in real time. The proposed circuit is designed in 0.18um CMOS process. The designed chip area is $900um{\times}1370um$ including a load charge pump and pads. Measured results show that the designed system can track the MPP voltage changes with variations of light intensity. The designed circuit with MPPT control delivers MPP voltages to load even though the load is heavy such that it can supply more power when the MPPT control is applied. The proposed circuit does not require any precharged battery resulting in more suitability for miniaturized self-powered systems compared to the existing works.
Keywords
Energy Harvesting; Solar Energy; Solar Cell; MPPT; Charge Pump;
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1 D. Dondi, A. Bertacchini, L. Larcher, P. Pavan, D. Brunelli, and L. Benini, "A solar energy harvesting circuit for low power applications," IEEE ICSET, pp. 945-949, 2008.
2 H. Shao, C. Tsui, and W. Ki, "The Design of a Micro Power Management System for Applications Using Photovoltaic Cells With the Maximum Output Power Control," IEEE Trans. on VLSI Systems, vol.17, no.8, pp. 1138-1142, 2009.   DOI   ScienceOn
3 I. Doms, P. Merken, C. Van Hoof, and R. P. Mertens, "Capacitive Power Management Circuit for Micropower Thermoelectric Generators With a 1.4 uA Controller," IEEE JSSC, vol. 44 , no. 10, pp. 2824-2833, 2009.
4 C. Lu, V. Raghunathan, and K. Roy, "Maximum Power Point Considerations in Micro-Scale Solar Energy Harvesting Systems," ISCAS, pp. 273-276, 2010.
5 D. Dondi, A. Bertacchini, D. Brunelli, L. Larcher, and L. Benini, "Modeling and optimization of a solar energy harvester system for self-powered wireless sensor networks," IEEE Trans. on Industrial Electronics, pp. 2759-2766, 2008.
6 E. Mendez-Delgado, G. Serranoy and E. I. Ortiz-Rivera, "Monolithic integrated solar energy harvesting system," 35th IEEE PVSC, pp. 2833-2838, 2010.
7 C. Lu, S. P. Park, V. Raghunathan, and K. Roy, "Low-Overhead Maximum Power Point Tracking for Micro-Scale Solar Energy Harvesting Systems," VLSID, pp.215-220, 2012
8 X. Li, C.-Y. Tsui, W.-H. Ki, "Solar Energy Harvesting System Design Using Re-configurable Charge Pump", IEEE FTFC, 2012.
9 C. Hua et al., "Implementation of a DSP-controlled photovoltaic system with peak power tracking," IEEE Trans. on Industrial Electronics, vol. 45, pp. 99-107, Feb. 1998.   DOI   ScienceOn
10 W. Wu et al., "DSP-Based multiple peak power tracking for expandable power system," in Proc. Applied Power Electronics Conf. and Exposition 2003, vol. 1, pp. 525-530, 2003.
11 C. Hua and C. Shen, "Control of DC/DC converters for solar energy system with maximum power tracking," 23rd IECON, vol.2, pp. 827-832, 1997.
12 http://www.solarbotics.com