I'm creating a box that will have an external TTL trigger. I want to isolate my box's power/ground from that of the triggering device. Obviously, an optoisolator is the way to go (eg. PS2502). ...
Can I chain two isolated DC/DC supplies together for a higher output voltage? (Say, a 48V and a 12V to get 60V?) They'd be fed from the same 24V DC source. I've asked a related question before ...