Switching voltage inputs with a chip Answered
I have a small project I'm working on that uses rechargeable batteries. However I want the device to stop drawing from the batteries whenever an external power source is plugged in. (The external power source would then power the internal battery charger and the main device.) Is there a chip or circuit that could be used for this? My only alternative is to modify the power supply port to include a micro spdt that will switch when plugged in. But I'd rather like to avoid that.