AC/DC Power Supply and Battery Schematics

Electronics Infoline Web

Transformerless Power Supply

http://www.aaroncake.net/circuits/supply5.htm

One that use no PWM controller.

http://members.tripod.com/michaelgellis/power4.html

http://www.edn.com/archives/1995/081795/17di5.htm

Control circuit full bridge

http://www.hills2.u-net.com/electron/smps.htm

http://www.web-ee.com/Electronic-Projects/projects/eprom_psu/index.shtml

by John Nooyen.

http://www.uoguelph.ca/~antoon/gadgets/sccs.htm

http://www.rlocman.com.ru/am/a03002.htm

http://www.rlocman.com.ru/am/a03001.htm