Nanjing LED Backlight Recommended Supplier - Nanjing Vistabro Electronics Co., Ltd., There are many types of inductors, most of which are made by wrapping an enamel coated wire around a ferrite core, while some protective inductors place the coil entirely within the ferrite. An inductor is an electronic component that can convert electrical energy into magnetic energy and store it. The structure of an inductor is similar to a transformer but has only one winding. An inductor has a certain inductance, which only resists changes in current. If an inductor is without current flowing through it, when the circuit is closed, it will try to resist the current passing through it; if an inductor has current flowing through it, when the circuit is opened, it will try to maintain the current unchanged. Inductors are also known as chokes, reactors, and dynamic reactors. Inductance is an attribute of a closed circuit, meaning that when the current through a closed circuit changes, an electromotive force appears to resist the change in current. This type of inductance is called self-inductance, which is the attribute of the closed circuit itself. If the current in a closed circuit changes, due to the induced effect, an electromotive force is generated in another closed circuit, and this type of inductance is called mutual inductance. Inductance is the alternating magnetic flux generated around a conductor when an alternating current passes through it, the ratio of the magnetic flux of the conductor to the current producing this flux. When direct current passes through an inductor, it only presents a fixed magnetic field line that does not change over time.