Basically, I have dc adapters one of 12v 2a and one of 5v 1a, which do not have short circuit protection, having said that I want to make a simple circuit to protect them, I will add the circuit to the dc output cable of the charger so as not to disassemble it, I have seen various types of short circuit protection, for example:
With Buzzer, Those who trigger sound when short-circuited and throw away said energy so that it does not return. something like 19v 4 amp adapters.
Resumable silent, which cuts the power when there is a short circuit and resumes the passage of power until a few seconds pass, disconnected from the electricity of the house.
With led indicator, those that make the led turn off when there is a short circuit and stop the power while there is a short circuit, and resume until the short circuit stops. turning on the led again.
Using fuses, which blow when shorted and can be replaced.
I'm basically interested in any of those, except the last one, the one with replaceable fuses.
Or if there is another, for example using a diode that absorbs all the energy when the switch is short-circuited.
Here the dc adapter 12v 2a, using a switch to cause the short circuit:
Here the dc adapter 5v 2a, using a switch to cause the short circuit:
How much more simple and effective is, is better for me...
Led diodes ot buzzers are optionals
For the people who comment about the nippon adapters, I leave these images, in case they help in something!