4922-22H

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Fixed Inductors

Fixed inductors are generally used for storing and transferring electrical energy in an electronic device. An inductor generally consists of an inductive core, a coil wound around the core, and terminals or connectors for connecting to the coil in order to create a continuous current. The number of turns in the coil and the core material both affect the inductance of the inductor. The physical structure of an inductor will tend to be simple and the construction of them is quite easy to understand.

The 4922-22H inductor is a good example of a fixed inductor, and is an interesting example due to its combination of size, low loss, and high temperature rating (up to +150°C). This unique combination of features makes this type of inductor particularly suitable for power electronic applications. Lets take a look at the application field and working principle of 4922-22H fixed induction?

Application Field

The 4922-22H inductor is well known as being suitable for a wide variety of applications in the field of power electronics. It is widely used in high current and high frequency dc-dc converter applications, such as solar inverter, battery charger, and onboard charger, to provide input filtering, output filtering, and power factor correction, among other things. Since this specific inductor is designed to operate at a temperature range up to +150°C, it is appealing for motor drives, welding, and solar applications that require high reliability and harsh environment operation.

The 4922-22H series have also been adopted for applications where the operating environment is subject to high temperatures, high currents, high-frequency or high-speed switching. Further applications include hybrid electric vehicles (HEVs) and electric vehicles (EVs). The 4922-22H Series are optimised for applications with DC inputs from 5 to 175 V and AC mains up to 600 V. With a plethora of operating and storage temperatures, the high-performance core construction makes these a stable, low-temperature inductors that are able to maintain inductance and low AC resistance.

Working Principle

The main purpose for an inductor is to store energy in the form of a magnetic field and be able to transfer this energy to another location. These fixed inductors will be produced by winding an insulated copper wire around an inductive core, which may be composed of a ferrite material, a powdered iron core, or an air core. The inductance of an inductor is generally proportional to the number of turns in the coil, as well as the permeability of the material used as the core.

To understand the working principle of the 4922-22H, let us first understand the concept of an inductor. An inductor works when it is connected to an alternating current in a circuit. The rapidly changing current produces a changing magnetic field that interacts with the material in the inductor core, inducing an electromagnetic field inside. This electromagnetic field generates an opposing voltage that stalls the current, so that the inductance increases as the operating frequency increases. This is the principle behind the 4922-22H fixed inductor.

When a DC voltage is applied to the 4922-22H inductor, an effective change in impedance occurs due to the increasing inductance. This induces current to flow through the inductor, and the current then generates a changing magnetic field within the inductor core. This changing magnetic field produces an electric field around the core, which opposes the flow of current, thereby generating the voltage drop across the inductor that generates a voltage across the inductor’s terminals.

The electrical characteristics of the 4922-22H Inductor are designed to provide maximum efficiency and minimum amount of losses in power applications. It is designed to have high saturation characteristics, and an improved temperature stability, while the winding geometry provides low distributed capacitance to minimize cross-talk and provide increased bandwidth.

The 4922-22H Series is a great example of a fixed inductor and has applications spanning the automotive, industrial, renewable energy, and telecommunications industries. It is robust, reliable, and capable of operating at temperatures up to +150°C.

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