AC/DC adapters may be capable of more than one output. Many AC/DC adapters have a rating of the nominal total DC power supplied. Input plug styles, or AC pin (blade) type for AC/DC adapters can be two ...

Here are some ideas of what you can do: Make sure the Nintendo Switch AC adapter is not damaged by looking for frayed wires or bent pins. Third-party adapters can sometimes cause compatibility issues.

AC DC converter chips rectify AC input into DC output. They also adjust the voltage level through a regulator and smooth the pulsating DC through a capacitor. This video explains AC to DC conversion.