The power adapter is also called the external power supply, power supply voltage conversion device it is a small portable electronic equipment and electronic appliances, this is because in real life, electronic devices are often not directly use household power, because the use of home is a supply voltage of 220 V, and general electronic products the general power supply voltage to 5 volts to 20 volts. So the role of the power adapter is critical (modular power). With it, we can use these electronic products conveniently and safely. So, what is the role of the power adapter? For this problem, Xiaobian through collecting and collating data, a brief summary of its.
Composition and application of power adapter (working principle of power adapter)
Power adapter is common in small electronic products such as mobile phones, liquid crystal displays and notebook computers. Generally composed of shell, power transformer and rectifier circuit, according to its output type can be divided into AC output type and DC output type; according to the connection mode can be divided into plug wall type and desktop type. It is widely used in telephone subsystem, game machine, language repeater, Walkman, notebook computer, cellular phone and so on.