Is there a difference between a regulated power supply and a power adapter?
The former is mainly to stabilize the voltage, filter the impurities in the current.
The latter is mainly the voltage changes, such as 220V will be converted into 19V and so on.
The first is the role of voltage regulator voltage is the second transformer power supply equipment
The role of the adapter is a voltage converter: the 110-220 volts AC voltage into a fixed DC voltage. The function of the power supply is in the voltage conversion, the regulator was a regulator to ensure that the output voltage in the rated power to withstand the stability of the range. Change the voltage regulator power supply is also a lot, mainly school or home appliance repair and scientific research units to use multiple output or stepless adjustment output of the power supply
