Power adapters are widely used in residents’ lives. From the voltage regulator in the 1980s to the current laptop chargers, they can all be called power adapters. With the development of technology, the current power adapters are gradually getting smaller and smaller. The functions that can be provided have not changed. Here are the five core functions that the power adapter can achieve.
Power Adapter
Before the introduction, it is necessary to clarify the principle of the power adapter. It is not much different from the switching power supply. It is mainly the equipment suitable for adjusting the input and output voltage and filtering to remove impurities. I will also make a brief for everyone through the notebook power adapter. Function Description,
The first is to adjust the input and output voltage. The power adapter of the notebook computer can adapt to the voltage range of 100V-240V, that is, no matter where you are, the notebook computer can be plug and play without a power converter;
Second, the output voltage is based on the size and capacity of the notebook. Generally, it will choose from several amps to tens of amps, but the specifications are still according to the larger the screen, the more power consumption will be;
The third is to protect the computer components. If there is no power adapter, the notebook will burn out the original and the battery if it is directly plugged into the socket. The main reason is the load and other problems, and the power adapter is to control the current to the power required by the notebook. In the load, ensure that it does not bring safety hazards due to the electric load during normal use;
Fourth, it can protect the battery. It shunts and stabilizes the input voltage, filters impurities and clutter in the current, gives the battery a stable voltage power, and can also bear the problem of the sudden power failure of the battery voltage backflow , To further ensure the service life of its battery. During use, the power adapter will also send current to the machine and charge the battery by default. After the battery is full, it will send a signal to the adapter through the charging current control device to form a power failure, which is also one of the functions of the power adapter;
Fifth, the power adapter can also help the notebook computer to cool down. It will not cause a safety accident due to sudden power failure or other problems. The current provided by the voltage regulator can also be more convenient for the use of the notebook computer.
These five functions are all realized by the power adapter. If only the power is directly input, the notebook computer cannot be used normally.
