In electronic equipment, it is often seen that many magnetic rings and connecting cables form an inductor. The magnetic rod inductance coil is a commonly used anti-interference component in electronic circuits and has a good shielding effect on high-frequency noise, so it is called Absorbing magnetic ring, because it is usually made of ferrite material, it is also called ferrite magnetic ring. Magnetic inductance coils are widely used in mobile phones, laptops, PDAs, computer graphics cards, LEDs, MP3, MP4, network cards, network communications, office equipment, wireless transceivers, televisions, anti-theft devices, LCD backlights, power modules, Security products, automobiles, electronic watches, Bluetooth, cold light, medical equipment and other technical fields.
The magnetic bar inductance coil induction system mainly adopts the principle of electromagnetic induction, and realizes the energy transmission through the energy coupling of the coil. When the system works, the input terminal converts the AC mains power into a direct current through a full bridge rectifier circuit, or directly supplies power to the system with a 24V direct current terminal.
The DC power output from the magnetic bar inductance coil after passing through the power management module is converted into high-frequency AC power by a 2M active crystal oscillator inverter and supplied to the primary winding. Through the energy of the two magnetic rod inductance coils, the current output by the secondary coil is changed into direct current through the receiving conversion circuit to charge the battery. Therefore, the magnetic rod inductance coil occupies a crucial position in the wireless charger, which directly determines the quality of the wireless charger.
Magnetic bar inductance coil is commonly known as frameless hollow coil, multi-layer arrangement, very widely used, including solar swing coil, coin induction coil, IC card induction coil, voice coil (horn coil), remote control car steering coil, glide toy Coils, various electronic drive coils, etc. Magnet inductance coils can be divided into circular coils, square coils, racetrack coils, polygons and other shapes according to their shapes. Super large and super long lead wire coils can be specially produced. The various magnetic bar inductance coils wound with insulated wires are called inductances. Electronic components that are wound into one or more turns with wires to produce a certain amount of self-inductance are often called inductive coils or coils for short.
Magnetic bar inductance coils are widely used in electronic circuits, and are one of the main components for realizing oscillation, tuning, coupling, filtering, delay, and deflection. In order to increase the inductance, increase the Q value and reduce the volume, a magnetic core is often inserted in the coil. In high-frequency electronic equipment, a special shape of copper on the printed circuit board can also form an inductor, which is usually called a printed inductor or microstrip line.