What is an inductor in IC knowledge popularization? 1

Inductors, also known as inductive coils or simply inductors, are very important basic components in electronic technology. It is composed of insulated coils wound together, usually on a ferromagnetic material such as iron or silicon steel, to increase its magnetic permeability and magnetic induction intensity. Inductors are made using the principle of electromagnetic induction, which can convert electrical energy into magnetic energy and then restore it back to electrical energy. diode

The main function of an inductor is to filter electrical noise in the power supply, prevent electromagnetic interference between electrical equipment, and serve as a voltage regulator in the power supply circuit. The working principle of an inductor is based on Faraday's law of electromagnetic induction and Lenz's law. When a current passes through the BCM3345KPB inductor, a magnetic field is generated inside it. When the current changes, this magnetic field also changes, thereby inducing a current in the inductor.

The main characteristic of an inductor is inductance, usually represented by the letter L and measured in Henry (H). The size of the inductance depends on the number of turns of the coil, the area of the coil, the material of the magnetic core in the coil, and the shape of the coil. Generally speaking, the more coils there are, the larger the area, and the higher the magnetic permeability of the core, the greater the inductance value.diode

Inductors have a wide range of applications in electronic devices and power systems. For example, they are often used in filters to remove high-frequency noise from signals; In a transformer, energy is transmitted through two tightly coupled coils; In power supply, used for smoothing power output; In wireless communication devices, it is used for tuning and frequency selection. diode