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A Mame machine in an antique buffet - USB probs solved (I think!)
jwoods:
I think the Farnsworth and the Tesla will work in this discussion.
gryhnd:
--- Quote from: drventure on August 12, 2009, 11:08:11 pm ---Plus, as I understand it, most power switches for PC's these days like to be momentary. This definitely wouldn't be :)
--- End quote ---
I bet a relay and small circuit would take care of that.
...thinks, Googles...
Ya, here....just what you need:
Constant to Momentary Output
drventure:
@jwoods
Excellent. I love the Farnsworth. The ray gun looks a little cheap but it's still pretty cool. Just needs to be beefier!
@gryhnd
That is GREAT!. But aren't pc power switches usually connected to the ground side? Would you want to send voltage down that line or just a ground connect?
gryhnd:
In a low voltage situation it probably doesn't matter what you run through the switch, but in a typical situation (switchuation?) you usually wire up the (+)...that said...maybe switch the ground with everything being bare. Disclaimer though, I'm not an electrical engineer :)
gryhnd:
I realized I misinterpreted your question completely.
You're not going to want to send any voltage on the side of the relay that will switch the computer on, that's correct. You just want it to close and complete the circuit for a blip. So if I read that schematic correctly, you would take one of the two PC wires and put it on the part labeled "12V fused" and the other on the "12V momentary". I don't see that there's any actual voltage here unless the 12V fused is a true 12V to begin with.
But, as I say, I'm not an EE. I tend to experiment and occasionally blow things up :P
Someone with superior knowledge should jump in here.
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