How to convert an adapter into a variable power supply?
Using a 12V 2A adapter, I made a variable power supply with a voltage display.
For this, you will need a 12 volt two amp adapter, voltage display, 50 kilo volume, 10 kilo resistance and capacitors for output voltage with higher voltage, some wire and clamps.
Of course, I must say that in choosing the volume and resistance, you should pay attention to the resistance that is in the path between the positive output and the IC, and choose the value of the resistance and volume according to it, for example, there was a resistance of 39 kilos in this board, so from a volume of 50 kilos or more can be used and the resistance that was used was 1/4 of the value of the resistance on the board.