A charger is an electronic device that can convert the electrical energy of a power source into electrical energy inside the battery of electronic products such as smartphones, laptops, tablets, etc. The basic charging principle is to use the principle of a transformer to convert and transfer energy through an alternating current power source, ultimately converting alternating current into direct current, and then delivering electrical energy to the battery.
Specifically, when the charger is plugged in, the input part of the charger converts AC power into a certain amount of DC power, and then adjusts the voltage and current through techniques such as boosting and reducing voltage, ultimately outputting it to the battery. During the charging process, the charger will dynamically adjust the charging current and voltage based on the battery's specifications and status to ensure that the battery is fully charged as soon as possible, while also avoiding damage to the battery.
In addition, modern chargers are usually equipped with various intelligent protection, fast charging and other functions to enhance their safety and convenience. In summary, the charging principle of the charger is based on the working principle of a transformer, which converts AC power into DC power, dynamically adjusts it according to the battery's state, and ultimately delivers electrical energy to the battery.






