JEE_V3_N3_RP4 A. Daoud A. Midoun Journal on Electrical Engineering 2230 – 7176 3 3 31 39 MPPT, DC/DC Buck Converter, Hill Climbing, DC Motor-Pump, Sensor This paper presents a comparative study of single-sensor based Maximum Power Point Tracking (MPPT) techniques for solar photovoltaic (PV) systems. The proposed techniques employ conventional hill climbing algorithm to find and track the MPP, using single-sensor methods which are based on either a tachometer or manometer or voltage sensor. Description and analysis of the proposed techniques are presented and verified experimentally on DC/DC buck converter controlled by a low-cost 8-bit PIC microcontroller. January - March 2010 Copyright © 2010 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=1123