The electronic and digital products surrounding mobile phones and computers have filled our lives. In our daily life, the usage of mobile phones, tablet computers and laptops is gradually increasing. At this time, the usage of power adapters is also increasing.  It can be said that the market development of electronic and digital products has driven the development of the power adapter industry.  The huge user group is the foundation of the development of the industry. With the rapid development of science and technology today, the explosive growth of electronic products will definitely drive the vigorous development of ancillary industries. As the basis of the operation and use of these electronic products, the function of power adapter is irreplaceable.