Hello,
I'm currently planning the conversion of an AT computer power supply that I have lying around into a base supply for my hobbyist electronics projects . I know that there is a reason a lab supply costs that much, but for the use I'm planning, a computer supply will be enough. However, I would like to protect it against overload as I have no idea if the supply in itself is fitted with such circuit. I know I can use a fuse, or a PPTC but this type of circuit does not give me any indication that it is about to shutdown the power. I have in mind an old model train transformer that had a red light that progressively lights up as one approaches overload up until it is fully on and the supply to the system is shutdown I would thus like to reproduce this kind of behavior but I must admit that I'm a bit lost as to what starting point I could use. What resources would you recommend? Are there any base circuits that I can modify easily to add an indicator light?
Thanks for your help OBones