I am working on a project using a Windows CE computer.
Input power can range from 10-24 VDC (which the computer already does). I have parallel and TTL outputs available (and also RS232/422/485, 10V D/A and others) from which to select.
In the past, I had a simple circuit using a 2N7000 that could light up an LED indicator or drive an audible alarm, but now I would like to have external outputs for such devices and need short-circuit protection to prevent damage in the event of a problem in the outside world.
The common power supply handles several pieces of equipment and can supply almost 4A at 24VDC (short-circuit protected) or the system can run from a car battery which can give all its got until the fuse blows.
Oh yeah, I need as simple of circuit as possible (without PC board if possible), just enough to keep the thing running.
Thanks,
Dale
Input power can range from 10-24 VDC (which the computer already does). I have parallel and TTL outputs available (and also RS232/422/485, 10V D/A and others) from which to select.
In the past, I had a simple circuit using a 2N7000 that could light up an LED indicator or drive an audible alarm, but now I would like to have external outputs for such devices and need short-circuit protection to prevent damage in the event of a problem in the outside world.
The common power supply handles several pieces of equipment and can supply almost 4A at 24VDC (short-circuit protected) or the system can run from a car battery which can give all its got until the fuse blows.
Oh yeah, I need as simple of circuit as possible (without PC board if possible), just enough to keep the thing running.
Thanks,
Dale
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