Power Supply Design

Designing a power supply for one of your circuits can be
plain sailing but also turn out to be a surprisingly complex job.
Switch-mode power supplies in particular may present a real
challenge before useful results are obtained. Fortunately,
several semiconductor manufacturers come to our rescue.
A small power supply consisting of a mains transformer, a rectifier,
electrolytics and a voltage regulator can be designed and put
together by most electronics enthusiast with excellent results. However,
switch-mode power supplies (SMPSUs) see increasing use
thanks to being smaller, lighter and more efficient than a conventional,
linear supply.