Basics of tuned circuits

The tuned circuit is a fundamental building block among electrical and analog electronic circuits. Understanding how it functions provides insight to power quality, communications, controls, electronic equipment, and many other systems found in industrial manufacturing plants. This article provides a brief tutorial on tuned circuit theory and operation.

Basic electronics: What is inductance?

An inductor is a device that, when subjected to an increasing electrical current flow, generates a back voltage that opposes this current. Inductance quantifies how much energy an inductor can store. An inductor consists of at least one winding of wire, but it usually has more.