2-2176086-1

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2-2176086-1 Application Field and Working Principle

Fixed inductors have a wide range of application fields and are widely used in analog circuit design, digital circuit design, power management, rectifiers, switching circuits and so on. Fixed inductors are most commonly used as energy storage devices in power electronic circuits. Including power supply circuits, EMI reduction circuits, and filtering of radio frequency signals.

The Working Principle of a Fixed Inductor

The working principle of a fixed inductor is simple but effective. When a current is passed through an inductor, an induced voltage is generated, which is stored in the inductor as a magnetic field. This magnetic field stored in the inductor has a proportional relationship to the applied current – the stronger the current is, the higher the induced voltage. When the current is switched off, the magnetic field is released and the stored energy in the inductor is released as electrical energy. This electrical energy is then used to supply the circuit with power.

The working principle of a fixed inductor is based on Faraday’s law of induction, which states that a changing magnetic field will induce a voltage in an electrical circuit. This principle can be used to explain the working principle of a fixed inductor.

When a current is passed through an inductor, it generates a magnetic field within itself. This magnetic field then induces a voltage in the circuit, based on Faraday’s law of induction. This induced voltage is then stored in the inductor until the current is switched off. Once the current is switched off, the magnetic field is released, and the stored energy in the inductor is released as electrical energy.

This electrical energy is then used to power the circuit and provide power to the components connected to it. This is why fixed inductors are widely used in power electronic circuits, as they can provide a reliable source of energy for a circuit without the need for an external power supply.

Types of Fixed Inductors

There are many different types of fixed inductors available on the market today. The most common type of fixed inductor is the axial inductor, which is a type of inductor with a cylindrical shape and axial leads. This type of inductor is often used as a general purpose inductor and can be used for applications such as signal filtering, voltage stabilization, and EMI suppression.

Another type of fixed inductor is the radial inductor, which is a type of inductor with a cylindrical shape and radial leads. This type of inductor is often used as a power supply inductor and can be used in applications such as reverse polarity protection, high-frequency buck switching, and high-frequency boost switching.

In addition to axial and radial inductors, there are also surface mount inductors, which are a type of inductor that can be surface mounted on a printed circuit board. These types of inductors are often used in high-density applications such as cell phones and portable devices. The surface mount inductors have a smaller size than the other types of inductors and can be used for applications such as echo cancellation and smoothing of radio frequency signals.

Finally, there are also planar inductors, which are a type of inductor with a flat shape and multiple layers of metal, which are connected together by a base layer. These types of inductors have a high inductance value and are often used for applications such as power supply feedback, DC-DC conversion, and EMI filtering.

Conclusion

Fixed inductors are widely used in a range of electronic applications, from analog and digital circuits to switching and rectifying applications. Fixed inductors are most commonly used as energy storage devices in power electronic circuits, including power supply circuits, EMI reduction circuits, and filtering of radio frequency signals. The working principle of a fixed inductor is based on Faraday’s law of induction, which states that a changing magnetic field will induce a voltage in an electrical circuit. There are many different types of fixed inductors available on the market, from axial inductors to radial inductors, surface mount inductors, and planar inductors.

In conclusion, the fixed inductor is an essential component in a range of electronic circuits and can be used in a variety of applications. Its working principle is based on Faraday’s law of induction, and there are many different types of fixed inductors available on the market to suit any application.

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