First of all, from the power adapter concept, it is a small portable electronic device and electronic power supply power change device. Generally, it is composed of components such as a casing, a transformer, an inductor, a capacitor, a control IC , and a PCB board. It works by converting an AC input to a DC output. Power adapter, popularly speaking, also called "external power supply"
What are the characteristics of the power adapter?
1 : Protect your computer during a power outage
Power converter ( AC to DC ), converted from AC to DC, and then through the computer, it can not protect the computer, but the computer has a storage device (also called charger), so it can be protected in the event of power failure computer.
2 : Can automatically detect 100 - 240V AC ( 50/60Hz )
Power adapters are widely used in routers, telephone handsets, game consoles, language repeaters, walkmans, notebooks, mobile phones and other devices. Most power adapters can automatically detect 100 - 240V AC ( 50/60Hz ).
3 : Reduce the size and weight of the main unit
The power adapter is a power supply conversion device for small portable electronic devices and electronic appliances. It connects the power supply externally and connects to the host computer by a line. This can reduce the size and weight of the mainframe. Only a very small number of devices and electrical appliances have built the power supply into the host. Inside.
4 : "Nameplate" of the power adapter
The power adapter is internally composed of a power transformer and a rectifier circuit. There is a nameplate on the power adapter. The above indicates the power, input and output voltage and current amount. Among them, pay attention to the range of the input voltage.
The above is a one-by-one analysis of the concept, type, application and characteristics of the power adapter.
As a widely used power supply product. At present, the power adapter has been widely used in: security cameras, set-top boxes, routers, light bars, massagers, notebooks, printers and other electronic devices. In the security industry and consumer electronics, power adapters are used in a wide range of applications.