LQW15AN4N5D80D

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Fixed Inductors

LQW15AN4N5D80D is a type of fixed inductor, a component for electronic circuits which specializes in storing energy from an AC or DC electric current. Fixed inductors are widely used in power electronics applications such as AC-DC SMPS, switch mode power supplies, power inverters and DC-DC converters.

Application Field: An important application of fixed inductors is in power lines, like those powering mobile phone chargers, microcontrollers, USB power devices, or high voltage supplies. In applications such as these, fixed inductors are used to transfer power from point A to point B effectively, reducing line losses. As well as in power lines, fixed inductors are also valuable components for many control systems, like ripple current control, peak current limit control, and output voltage/current conditioning.

Working Principle: The working principle of a fixed inductor revolves around the concept of Faraday\'s law; a changing magnetic field will cause a voltage to be generated in the inductor. To put it simply, as the electrical current passes through the coil of the inductor, it creates a magnetic field that induces the voltage. As the current through the inductor varies, so does the magnitude of the generated voltage. This change in the magnitude of the generated voltage, caused by the creation of the induced magnetic field, is called the inductance.

Fixed inductors work best when connected in series or parallel to other components, such as resistors and capacitors, and with the correct selection of values all the properties of the inductor can be controlled. If multiple inductors are connected together then the combined inductance (L) of the series or parallel combination can be calculated from the individual inductances (L1, L2 etc.).

In addition to controlling the properties of inductors through the configuration of components, they can also be manufactured with specifications that control inductance and temperature stability. To achieve this, two main techniques are used; by winding the coil in methods known as stacking or bifilar winding, or by using high-temperature resistive materials. By varying the shapes of the coils, is also possible to control the phenomena of self-inductance, which also affects the properties of the inductor.

So, in summary, fixed inductors are a type of component for electronics which specializes in the storage of electrical current. Fixed inductors are found wherever there is a need to pass current from one point to another, and this area includes AC-DC power supplies, DC-DC converters, power inverters and many control systems. The working principle of a fixed inductor is based on the law of Faraday\'s, and depending upon the configuration of components, the combined inductance of the series or parallel combination can be controlled.

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