Suggest doing a google search as there are tons of information about various topologies of SMPS. With consumer electronics, the isolated flyback converter w/feedback has been very common.
HERE is a good bit of related info.
avz
Posted: Sun Mar 07, 2010 5:58 am Post subject: POWER SUPPLY EXPLANATIONS
Hi
Where can I find explantions of the method of working of switching power supplies, such as in tv sets, dvd's, etc?
Thanks.