http://www.uuhome.de/william.darden/
Numerous diverse and conflicting constraints burden the designer of small hand-held products
http://www.maxim-ic.com/appnotes.cfm/appnote_number/671
http://www.tpub.com/neets/book21/87i.htm
from the basic concept at work to the actual chemistry going on inside a battery to what the future holds for batteries and possible power sources that could replace them!
http://www.howstuffworks.com/battery.htm
http://www.edn.com/article/CA149117.html
This document gives you the equations for Half Wave Rectifier (HWR), Full Wave Center Tap (FWCT), Full Wave Bridge (FWB) and Dual Complementary Rectifies (DCR). Also example circuits are given. This document gives also information how to add a regulator t
http://www.atc-frost.com/products/design/va.htm
http://www.pcguide.com/ref/power/ext/ups/types.htm
analyzing noise from the perspective of portable-system design will help you make appropriate power-supply design trade-offs.
http://www.edn.com/archives/1996/011896/02df3.htm