NMR wireless charging

Nuclear magnetic resonance wireless charging is a method of carrying out power engineering transportation after inserting power capacitors on the transmitting side and receiving side to generate an LC coupling circuit to make the series resonance of the transmitting side and the receiving side consistent. The advantage of this type of method depends on the distance between the coils that can be enlarged. At the same time, even if the central management center of the coil is slightly offset, power transmission can be carried out, and several mobile devices can be charged at the same time.

However, no matter what kind of wireless charging method, the application of magnetic materials is the key when manufacturing wireless charging devices. This is a link that should be highly valued, because the application of magnetic materials will also directly affect wireless charging products. The efficacy and role of. As for the commonly used magnetic materials, it seems that the applications of magnetic materials for wireless chargers are mainly neodymium-iron-boron permanent magnets, nickel-zinc ferrite thin magnetic sheets, manganese-zinc ferrite thin magnetic sheets, and soft ferrite. There are a total of 4 types of magnetic material applications for bulk magnetic sheets. I want to know what are the magnetic materials in wireless charging products. The answer is here.

It is reported that the magnetic isolation sheet made of soft ferrite core magnetic material has the effect of improving the effect of the magnetic induction electromagnetic field and shielding the coil. Therefore, these magnetic materials are the key components of wireless charging.

Fixed wireless chargers generally use neodymium-iron-boron permanent magnets as materials for precise positioning. Smart terminals must be placed in a fixed location to perform battery charging and maximize charging efficiency. (Large and medium-sized equipment will use permanent ferrite magnetic materials instead of NdFeB magnetic materials to control costs)

The permanent magnet magnetic material used in wireless charging equipment, on the one hand, as a positioning device between transmitting and receiving, is conducive to the rapid, appropriate and precise positioning of the smart terminal. On the other hand, the application of this magnetic material can improve the transmission and reception. The magnetic flux between the coils enhances the effect of high transmission efficiency. The above is a detailed introduction about the application of magnetic materials and what are the magnetic materials in wireless charging products.