Jiangsu LED Backlight Supplier, Factory Direct, Price - Nanjing Weishibo Electronics Co., Ltd. Inductors (Inductor) are components 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 in a state without current flow and the circuit is closed, it will try to resist the current passing through it; if the inductor is in a state with current flow and 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 an 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 produced around a conductor when AC current flows through it, the ratio of the magnetic flux of the conductor to the current that produces it. When DC current flows through an inductor, only fixed magnetic field lines are present around it, which do not change over time.