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| Running other things off the PC power supply. Where do you draw the line? |
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| lanman31337:
You should be fine. Since no power supply is 100 percent efficient and this one is an 80+, the lowest amount of power you're looking at is around 344 watts, which is still under the numbers you're at. |
| BadMouth:
--- Quote from: kahlid74 on April 25, 2012, 02:28:15 pm ---Your calculations look good so I would think you'd be fine powering it off the same PS. The only thing I would be concerned with is how good of quality the PS is. That actuator could produce noise that the PS can't filter and in turn could drive it back to your PC potentially damaging your components. So I'm not worried about the PS being powerful enough to handle it, I'm more worried about what could come back through the PS to damage the computer. --- End quote --- That's the type of thing I'm curious about. That and if the hit of the initial draw adversly affects the power going to the pc, even if the PSU isn't undersized. I have other power supplies laying around that I could use. The purpose in going this route would be to have less crap and less wiring inside the cab. If it's just a bad idea, I won't go that route. I'm still interested in more insights from people who know more than me or might look at it from a different angle. :) Curious about the question in general. Not just as it applies to my situation, but maybe someone running servos or other devices. |
| milhouse:
--- Quote from: BadMouth on April 25, 2012, 02:50:49 pm ---I have other power supplies laying around that I could use. --- End quote --- If that's the case, you could always go this route. I've thought about doing it but so far I haven't needed it. |
| kahlid74:
--- Quote from: BadMouth on April 25, 2012, 02:50:49 pm --- --- Quote from: kahlid74 on April 25, 2012, 02:28:15 pm ---Your calculations look good so I would think you'd be fine powering it off the same PS. The only thing I would be concerned with is how good of quality the PS is. That actuator could produce noise that the PS can't filter and in turn could drive it back to your PC potentially damaging your components. So I'm not worried about the PS being powerful enough to handle it, I'm more worried about what could come back through the PS to damage the computer. --- End quote --- That's the type of thing I'm curious about. That and if the hit of the initial draw adversly affects the power going to the pc, even if the PSU isn't undersized. I have other power supplies laying around that I could use. The purpose in going this route would be to have less crap and less wiring inside the cab. If it's just a bad idea, I won't go that route. I'm still interested in more insights from people who know more than me or might look at it from a different angle. :) Curious about the question in general. Not just as it applies to my situation, but maybe someone running servos or other devices. --- End quote --- I would either then utilize another PS or buy a PS specifically for motors and use that to power the actuator. |
| DaOld Man:
I dont feel good about using the PC power supply for much of anything else, especially heavy inductive loads such as a motor. And as Jim suggested, you can get power supplies pretty cheap off ebay, just make sure you get one that can handle the current you will be putting on it. Some are pretty compact and wont take up a lot of room. And if you can still find them the old AT power supplies are great for additional power, but they have a rather large footprint, if you are pressed for space. |
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