Hello, I have two power source: main is about 6-7V, backup about 10-12V, I'd like to use main if it remains above a certain threshold (5.5V) and switch to backup if main is lower, how should I do? If main were greater than backup I could use two diodes in series with the two sources, but this is n…

Something like this: [2021-04-30_10-18-14]

Circuit for power source selection

LarryD April 30, 2021, 4:16pm 6

Something like this: