There are two types of modern power adapters: dc power adapter and ac power adapter. Today, dc power adapter manufacturers will take you to understand the difference between the DC power adapter and the AC power adapter.

The dc power adapter is a power adapter for charging and using network extenders, routers, communication equipment, mobile phones, laptops and PSPs. Since the internal components of laptops and PSPs use direct current, and our living electricity is alternating current, there must be a way to convert the living electricity into direct current to power the computer and PSP. The dc power adapter was born in this situation.
Common ac power adapter are usually equipped with AC symbols on the outside, and the interior of the AC adapter is mainly completed through the power transformer to complete the conversion output.
The dc power adapter (hereinafter referred to as the DC power supply) is DC. The inside of the DC adapter is composed of a rectifier circuit. At present, common ac power adapter on routers have a copper core (wire package) inside. When working, the power consumption will be lost in the form of useless power, and the input voltage range of the cable package power supply is very narrow, which cannot be adapted to a variety of use environments. The common DC power supply is an adapter (such as a mobile phone charger, also known as a DC switching power supply), which is composed of a rectifier IC chip and a filter circuit inside, and the loss will be much lower.