Amorphous magnetic rings are magnetic components processed from amorphous materials. They can be categorized into ferrite amorphous and cobalt amorphous, etc., depending on the material of the amorphous ribbon used. According to the shape of the material, they can be divided into ribbon-type magnetic rings and powder-type magnetic rings. The characteristic of amorphous materials is that their saturation magnetic flux density is much higher than that of common ferrite and powder cores, but the permeability will quickly decrease as the frequency increases, generally used in frequency bands of tens to hundreds of KHz.