Fixed Inductors

Fixed inductors are a type of inductor that has a fixed value of inductance. Inductance is a measure of the amount of opposition that an inductor presents to changes in the flow of electrical current. In other words, an inductor with a high value of inductance will oppose changes in the current flowing through it more than an inductor with a low value of inductance. Fixed inductors are commonly used in a variety of applications, including filtering, impedance matching, and power conversion. They are typically made from a coil of wire that is wound around a core of ferromagnetic material, such as iron or ferrite. The value of inductance of a fixed inductor is determined by the number of turns of wire in the coil, the size and shape of the coil, and the type and size of the core material. Fixed inductors are often used in conjunction with other electronic components, such as capacitors, to form inductor-capacitor (LC) filters. These filters are used to remove unwanted frequencies from an electrical signal, or to pass only a certain range of frequencies. Fixed inductors are also used in power converters, where they are used to smooth the output of the converter and reduce the amount of ripple in the output voltage.