- Published in issue 7/1992 on page 69
Simple power supply concept
The best known alternatives to a 'quick and dirty' power supply are tbe three-pin flxed voltage regulator and the zener-plus-transistor combination. While these basic circuits will suit a good many applications, they do have their limitations, which can be frustrating at times. For example, most types of fixed voltage regulators are limited to an output current of about 1 A only.