As smart devices occupy a more and more important position in people's lives, with the gradual increase of functions, the problem of power consumption of devices is gradually exposed, and people are increasingly accustomed to carrying a power adapter, which is often referred to as the charger. What is the difference between this power adapter and the voltage regulator? This article will introduce for you. It was found that in the case of no load, the voltage of the power adapter was higher than the value he marked, and the regulator was always this value. So what's the difference between these two?

Differences between power adapters and regulators

1, the power adapter is a small portable electronic equipment and electrical and electronic power supply conversion equipment, generally composed of housing, power transformer and rectifier circuit, according to its output type can be divided into AC output type and DC output type. It can be understood as a voltage converter, such as converting a 110-220 volt AC voltage into a fixed DC voltage.

2, the voltage regulator is to make the output voltage stable equipment. The regulator is composed of constant voltage, control circuit, and servo motor. When the input voltage or load changes, the control circuit samples, compares, amplifies, and then drives the servo motor to rotate, so that the position of the regulator carbon brush changes, and the coil turn ratio is automatically adjusted to maintain the stability of the output voltage.

Power adapter in the case of no load voltage is higher, if you pick up the load will find that its voltage will drop down, this is due to its own role limited, just to provide a suitable voltage to the load, and the regulator's main role is to stabilize the voltage through it at a certain range, more than or less than this value it has action, The power adapter does not do this