We found this circuit in a documentation from the 90's. Information on the A/D converter was not given but types can be used according to the application.
This circuit is from an article that teaches how to assemble it in the magazine Electronics Now...
This circuit uses the flip-flops from the previous circuit to implement a 3-digit binary counter. The...
Found in a 90s Maxim documentation, this circuit disconnects the battery in case of overload. The...