Adapter manufacturers estimate that many small partners have the adapter as a charger experience, Xiao Bian had also thought that the beginning, but later found that the two are actually different.
   Charger refers to a device that converts alternating current into low voltage direct current, which includes a current limiting, limiting voltage, etc. to meet the charging characteristics of the control circuit. The power adapter is through the transformer, rectifier and regulator power converter, the output is DC, in the case of power can be understood as low-voltage power supply.
   Charger flow is: constant current - constant pressure - trickle, third-order intelligent charging. The three-stage charging theory in the charging process can greatly improve the charging efficiency of the battery, shorten the charging time, and can effectively extend the battery life. Three-stage charge using the first constant current charging, and then constant voltage charging, and finally the use of floating charge maintenance charge.
   The power adapter is widely equipped in the router, phone son machine, game consoles, language repeaters, Walkman, notebooks, mobile phones and other equipment. Most of the power adapter can automatically detect 100 ~ 240V AC (50 / 60Hz).    Power adapter is a small portable electronic equipment and electrical and electronic power supply conversion equipment, it is external power supply, with a line and the host connection, which can reduce the size and weight of the host, only a very small number of devices and electrical power built in the host Inside.