When everyone can't help but notice, there are a lot of charging devices around, especially chargers, which we also call power adapters, which are switching power adapters in professional terms. As long as you explore carefully, you will find that the things you are using can only work normally if you connect to them. Especially for the electric cars that many people ride now, this kind of car must be connected and charged with a power adapter. Because the power adapter is small and relatively convenient to carry, it can also help everyone to carry it in the electric car.

　　The power adapter is a kind of charging equipment that is composed of a voltage-blocking plastic safety shell to wrap the isolated power transformer, and then add a rectifier circuit combination. According to the different output performance of the power adapter itself, the power adapter can also be divided into AC output type and DC output type. Moreover, according to the connection mode of the power adapter, the power adapter can also be divided into a wall-mounted type and a desktop type. In general, the power adapter will not only be used in battery cars to provide electrical energy for charging, it will also be widely used on various telephone handsets to provide electrical energy.

　　In addition to this power supply, it will also be provided to the game console to supply power to the game console, as well as the language repeater, which will also use the power adapter. Moreover, some walkmans, cellular phones and other devices will also be equipped with power adapters for charging. In addition to these, the notebook computers that everyone generally use are actually small power providers such as power adapters that provide power to the computer.