JFET_V2_N2_RP2 D.V. Ashok Kumar Dr. K. Vijay Kumar Reddy Dr. V. Sankar Journal on Future Engineering and Technology 2230 – 7184 2 2 40 47 Solar charge controllers, Maximum Power Point Tracking, pulse width Modulation Conventional Solar charge controllers have many drawbacks. These cannot track maximum sun irradiation and ambient temperature. An attempt has been made to overcome these drawbacks by developing a technique called MPPT (Maximum Power Point Tracking), which recovers the loss of power due to varying panel output and improper matching between the panel and battery. This technique utilizes pulse width Modulation, Micro controller, dc/dc (buck) converter for efficient charging of Load or battery. Under various test conditions, numerical results have been obtained for the proposed technique and shows that proposed technique is an efficient technique compared to the existing technique. November 2006 - January 2007 Copyright © 2007 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=878