PM518S-270-RC

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Fixed Inductors: PM518S-270-RC Application Field and Working Principle

Inductors are widely used in a variety of electric circuits, which are essential electrical components. Fixed inductors, as their name implies, are always fixed devices with a fixed inductance. PM518S-270-RC is a popular type of fixed inductor with a wide range of applications in the fields of power supply filter, switching power supply filter, audio equipment filter, EMI suppression filter, amplifier and so on. This paper mainly discusses the application field and working principle of PM518S-270-RC.

Application Field:

PM518S-270-RC is a Ferrite core inductor, which is used in many fields. The main application fields are as follows:

• Power supply filter: PM518S-270-RC is widely used in power supply filter circuits, which can reduce the power frequency interference signal. It can improve the quality of the electric power and also improve the reliability of other power components.
• Switching power supply filter: PM518S-270-RC has a low DC resistance, high frequency characteristics and low loss. The fixed inductors can reduce the high frequency radiation of switching power and greatly improve the EMI/EMC performance of the switching power supply.
• Audio equipment filter: PM518S-270-RC can effectively reduce the noise and interference of audio equipment, improve the signal-noise ratio and sound quality, and also ensure the normal operation of audio equipment.
• EMI suppression filter: PM518S-270-RC can effectively suppress electromagnetic interference (EMI) signals, which can not only avoid interference of electronic products, but also benefit the radiation performance of electronic products.
• Amplifier: PM518S-270-RC in the amplifier filter circuit can make the amplifier smoother and reduce the signal distortion and harmonic

Working Principle:

The primary function of a fixed inductor such as PM518S-270-RC is to store energy in the form of electric fields. The core of PM518S-270-RC is made of ferrite, which is the energy storage component. When the current passes through the coil, the magnetic field generated in the air gap of the core will store more energy. The current passing through the coil will be affected by this energy, coupled with the resistance of the coil, resulting in the transmission of electric energy. As current through the coil changes, the magnetic field around the inductor will also change accordingly, resulting in magnetic flux density changes. When the flux density changes, it will generate electromotive force in the coil, thus forming induced current, and the energy stored in the core will be released to the circuit.

In summary, PM518S-270-RC is one of the widely used fixed inductors. It has a wide range of applications in the fields of power supply filter, switching power supply filter, audio equipment filter, EMI suppression filter, amplifier and so on. The electric energy of PM518S-270-RC is generated by passing current through the coil, forming magnetic flux density changes, thus generating electromotive force in the coil and releasing energy to the circuit.

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