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Title: Synchronous Buck Converter based PV Energy System for Portable Applications
Authors: Chitti Babu, B
Samantaray, S R
Saraogi, N
Ashwin Kumar, M V
Sriharsha, R
Karmaker, S
Keywords: photovoltaic(PV)array
battery charging
synchronous buck converter
Issue Date: Jan-2011
Publisher: IEEE
Citation: IEEE Student's Technology Symposium 2011" IEEE TECHSYM 2011, IIT Kharagpur, Jan/14-16,2011
Abstract: Synchronous buck converter based photo voltaic (PV)energy system for portable applications is presented in this paper; especially to charge the batteries used in mobile phones. The main advantage of using synchronous buck converter is to reduce the switching loss in the main MOSFET over conventional dc-dc buck converter. The switching loss is minimized by applying soft switching techniques such as zero-voltage switching (ZVS) and zero-current switching (ZCS) in the proposed converter. Thus the cost effective solution is obtained; especially in the design of heat sink in the dc-dc converter circuit. The DC power extracted from the PV energy system is synthesized and modulated through synchronous buck converter in order to suit the load requirements. The characteristic of PV array is studied under different values of temperature and solar irradiation.Further, the performance of such converter is analyzed and compared with classical dc-dc buck converter in terms of switching loss reduction and improved converter efficiency. The whole system is studied in the MATLAB-Simulink environment.
Description: Copyright belongs to Proceedings Publisher
Appears in Collections:Conference Papers

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