JEE_V4_N2_RP5 T. Saravanan S. Ramareddy Journal on Electrical Engineering 2230 – 7176 4 2 28 34 DC Uninterruptible Power System (UPS), Multiple-output Converter, PC Power Supply This paper deals with simulation of open loop and closed loop controlled multiple output AC to DC converter using Matlab simulink. The multiple outputs AC to DC converter are capable of giving 12V and 5V DC. This conversion has advantages like reduced transformer size and reduced filter size. The results of closed loop system are presented. October - December 2010 Copyright © 2010 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=1274