voltage regulator

Voltage regulator tutorial and USB gadget charger circuit

This video covers the basics of linear voltage regulators – what they do, how to wire them up, and where to find them. Then I give a basic example of how to build a 5V supply that can be used to power USB powered gadgets. This video builds upon material covered in the transformer and diode tutorials. If you watch them sequentially, you’ll learn how to safely get from mains voltages to a regulated DC voltage supply for your projects.