Wifi Adapter Manufacturer

Perfect selection of suitable power adapter, charger

For many people, the concept of power adapter is only at the stage of charger, but in fact power adapter is a kind of transformer, which is used in a large number of chargers. People who are not familiar with power adapters often need to face the question of which power adapter to use for charging.

　　Power adapters have a variety of parameters, so it is not possible to use an adapter for charging at random. Before choosing a power adapter, it is first necessary to determine three conditions of suitability.

　　First, the interface of the adapter matches the device;

　　Second, the output voltage must be the same as the rated input voltage of the load (mobile device) or in the voltage range that the load (mobile device) can withstand, otherwise, it may burn the load (mobile device);

　　Third, the output current of the power adapter should be equal to, or greater than, the current of the load (mobile device) to provide sufficient power;

　　The following is an analysis of the above three fit conditions.

　　First, mismatched interfaces should never be plugged in without specialized knowledge, or danger will occur.

　　Second, for why the voltage needs to be the same, in principle, it is like this - insufficient voltage, not enough to drive the load, the battery can not be charged properly, to put it plainly, the supply does not meet the demand.

　　Third, as to why the need for such a current configuration, which involves the principle of the circuit, we all know that the power supply is an internal resistance, the greater the internal resistance, the greater the loss. Therefore, manufacturers in the production of this adapter will be based on the size of the internal resistance, to determine the no-load output voltage within a certain range, and the voltage threshold corresponding to the current threshold that is the nominal value of the current we see, the greater the nominal value of the current that the adapter with the better the ability to carry load. So choosing an adapter with a slightly higher current will not hurt the battery, but will make charging faster.

　　This article generally introduces, how to choose the power adapter according to their own needs, and gives three easier to understand the conditions of choice, I hope you can gain after reading this article.