Elsevier

Energy Conversion and Management

Volume 75, November 2013, Pages 761-772
Energy Conversion and Management

PV power system using hybrid converter for LED indictor applications

https://doi.org/10.1016/j.enconman.2013.08.025Get rights and content
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Highlights

  • This paper presents a LED indictor driving circuit with a PV arrays as its power source.

  • The perturb-and-observe method is adopted to extract the maximum power of PV arrays.

  • The proposed circuit structure has a less component counts and higher conversion efficiency.

  • A prototype of LED indictor driving circuit has been implemented to verify its feasibility.

  • The proposed hybrid converter is suitable for LED inductor applications.

Abstract

This paper presents a LED indictor driving circuit with a PV arrays as its power source. The LED indictor driving circuit includes battery charger and discharger (LED driving circuit). In this research, buck converter is used as a charger, and forward converter with active clamp circuit is adopted as a discharger to drive the LED indictor. Their circuit structures use switch integration technique to simplify them and to form the proposed hybrid converter, which has a less component counts, lighter weight, smaller size, and higher conversion efficiency. Moreover, the proposed hybrid converter uses a perturb-and-observe method to extract the maximum power from PV arrays. Finally, a prototype of an LED indictor driving circuit with output voltage of 10 V and output power of 20 W has been implemented to verify its feasibility. It is suitable for the LED inductor applications.

Keywords

Buck converter
Forward converter
Charger
Perturb-and-observe method
LED indictor driving circuit

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