It's the mark on the power. I don't understand it yet. Just ask
AC is the abbreviation of AC power supply. DC is the abbreviation of DC power supply.
The AC/DC power supply is a power converter with input to AC and output to dc. For example, our commonly used mobile phone charger, notebook, tablet computer power adapter is this kind of power supply.
AC power supply switching power supply, the front is AC/DC, including input filter, rectifier circuit, and then back is DC/DC.But behind the DC/DC. It is compatible with the rectifier output voltage in front, not universal.That is to say, the DC/DC behind must be powered by a specific voltage.
Inside the power converter, there are step-down circuit, rectifier filter circuit and voltage stabilizing circuit. In the AC/DC power conversion applications, require a wide input range, usually require: 85V~265V AC input and output power conversion efficiency requirements, and can effectively improve the energy efficiency, full load efficiency is a major factor to consider in the design of power supply AC/DC. The method of improving the efficiency of AC/DC converters and achieving better energy saving performance is the advocacy of green energy.
