The first & third are adequate.
2nd & 4th are too low in current capability. (0.5A).
I use expresspcb.com to make schematics for posting here.
7-12V adapter will have to be regulated by 7805 type regulator.
The first & third are adequate.
2nd & 4th are too low in current capability. (0.5A).
I use expresspcb.com to make schematics for posting here.
7-12V adapter will have to be regulated by 7805 type regulator.