Nov 28, 2011 #1 M muruganshanjai Newbie level 4 Joined Mar 30, 2008 Messages 5 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,303 dear readers please see our attachment for top250y based 300watts smps design Attachments 300-watt-top250y.rar 244.2 KB · Views: 63