randazzm
Newbie level 3
Hello,
I have a micro controller that has a 5v output and 5v input. (which is normal). I have 2 circuits that I need help with.
1) I have a circuit that takes the 5v from the microcontroller and steps it up to 24v to a PLC. I have an optoisolator circuit running that circuit. My problem lies in the grounding. For my PCB, i have 24V coming in, and that's it. Only 2 lines. Does one half of the optoisolator circuit need to be completely isolated, or are there different alternatives?
2) My second circuit is pretty much the opposite. I have 24V coming in and it needs to be transformed to 5v (I do this 8 times, so space needs to be saved) Otherwise i would just use a voltage regulator. (which could be possible if anybody thinks that is the best method).
Any help would be greatly appreciated! Thanks!
-=Razzledazzle=-
I have a micro controller that has a 5v output and 5v input. (which is normal). I have 2 circuits that I need help with.
1) I have a circuit that takes the 5v from the microcontroller and steps it up to 24v to a PLC. I have an optoisolator circuit running that circuit. My problem lies in the grounding. For my PCB, i have 24V coming in, and that's it. Only 2 lines. Does one half of the optoisolator circuit need to be completely isolated, or are there different alternatives?
2) My second circuit is pretty much the opposite. I have 24V coming in and it needs to be transformed to 5v (I do this 8 times, so space needs to be saved) Otherwise i would just use a voltage regulator. (which could be possible if anybody thinks that is the best method).
Any help would be greatly appreciated! Thanks!
-=Razzledazzle=-