Hello,
First off my english is not very good
I have a 12V 2A power supply and i use it for lot of stuffs like fans and all that, I'll put alligator clips on the cables but there is one problem :
There is no current limitation circuit in this power supply and the + and - touches sometimes making a short-circuit and i don't like that.
So i search on internet for a protection.
A LM358 Op-amp can sense current so i would like to make a protection circuit with a LM358 and a mosfet and a nor/nand gate (flip-flop)
What i would like to do :
When they will be a short-circuit the op-amp will detect a high current and will shut off, the only way to have back 12v again is to press on a switch
Can someone help me please
Thanks by advance
Regards
First off my english is not very good
I have a 12V 2A power supply and i use it for lot of stuffs like fans and all that, I'll put alligator clips on the cables but there is one problem :
There is no current limitation circuit in this power supply and the + and - touches sometimes making a short-circuit and i don't like that.
So i search on internet for a protection.
A LM358 Op-amp can sense current so i would like to make a protection circuit with a LM358 and a mosfet and a nor/nand gate (flip-flop)
What i would like to do :
When they will be a short-circuit the op-amp will detect a high current and will shut off, the only way to have back 12v again is to press on a switch
Can someone help me please
Thanks by advance
Regards