An Introduction To The Inductor Coil

by | Jan 17, 2017 | Electronics and Electrical

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In any type of electrical system, there are a variety of different components that work together to allow the correct functioning and operation of the system. Some of the parts alter or change the electricity passing through the system while others are passive.

An inductor coil is a good example of a passive component in a system. This is a part that serves the purpose of storing electrical energy in its magnetic field. This magnetic field is created by winding an electrical wire, typically copper, around a core to create a coil.

The number of times the electrical conductor, the wire, passes around the core is called the windings. A different number of winding and different winding patterns allow for different fields to be generated. Additionally, different cores, which are typically ferromagnetic or plastic materials, will also increase or decrease the magnetic field. Finally, the length of the coil as well as the cross-sectional area will also limit or increase the capacity of the inductor coil.

How it Works

The entire purpose of a current inductor is to hold electricity in the magnetic field. This allows an even flow of electricity through the system or it can also be used to block or prevent specific types of currents from passing through. When an inductor is used in this way, it is typically called a choke. When the circuit is switched off it collapses, releasing the energy and bringing the system back to balance.

Where to Find Inductors

There are many different applications that use inductor coil designs. This can include in most switched-mode power supplies, in radio equipment, sensor units and even in electrical cords and computer components to block electromagnetic interference.

Different shapes and designs in inductors will be more effective in different types of equipment. As there are many different factors to consider when selecting these parts, working with an experienced company to design the right component for your needs will be important.