Anyone know a way to switch 48v with solid state components?
I've got a rough design to use a parallel port (controller side is not an issue) to switch on/off low-levels lines .. I know I could use a relay to switch the 48v lines on/off, but this project will involve rapid switching at points, and the noise alone of the relays would be a problem.
Can anyone suggest a solid-state type of setup to handle switching 48v with parallel port ~5v input switching? A bit of searching has identified "SSR" as a suitable unit, but I cannot find something matching that description in Australia?
Thanks in advance!