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Power - Why can't we?

Discussion in 'Hardware' started by StumpedTechy, Jul 26, 2006.

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  1. StumpedTechy

    StumpedTechy Thread Starter

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    After looking at the RATS nest of cords under my desk I have to wonder about some things -

    Why did the power cord from the PC to the monitor go the way of the dinosaur in that many power supply manufacutrers don't offer that passthrough? (I think I have seen one or 2 of those still arund though). Why isn't there a power supply setup that the PC power supply can power periphrials that attach to it as well? E.G. some connector that attches to the case that allows you to then connect the periphrial drictly to that instead of to having to run a wire. Why can't power be added to the data cord in some way to reduce cord clutter?

    Just a few things I noticed and pondered as I swapped out my UPS and had to navigate so many cords it looked like I was starring in the snake scene from Raiders of the Lost Ark.
     
  2. Rich-M

    Rich-M

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    Yeah I know what you mean there are times I look under my desks and wonder how we survive. I remember as a kid being yelled at for using an extension cord to plug 4 things into a wall outlet and being scolded by parents that I would cause a fire. Now I must have 17 plugs into 1 plug in the outlet alone.
     
  3. onsite

    onsite

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    They disappeared when PC's went from AT to ATX. Remember AT PCs had an on/off switch that went directly to the power supply, while ATXs the on/off switch goes to the mainbaord. So I guess it was a load issue or cost ?

    A/C running along side data wires would introduce a/c signals in the data lines.
    sort of the way a transformer works, where the primary winding introduces pulses in the secondary with lines of flux.
     
  4. StumpedTechy

    StumpedTechy Thread Starter

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    I could of sworn I saw some on the ATX Power supplies but you may be right.. that was about the time I saw them dwindle... I never put the corellation of AT vrs ATX to this plug being there or not.

    Couldn't you simply use a shielded cable for that though? I know data too close to power can be an issue but heck we've started getting into POE it should be possible in other aplications too.

    I made a power plug count and it is insane -

    1) Monitor
    2) KVM
    3) USB mouse docking station
    4) Printer
    5) USB hub
    6) External HDD case
    7) External HDD case
    8) External HDD case
    9) PC
    10) PC
    11) PC
    12) PC
    13) Speakers
    14) Scanner
    15) Switch
    16) Router
    17) Cablemodem
    18) Wireless access point
    19) Camera
    20) Unused plug where I plug in any PC I am currently working on.
    21 -23) non computerized light, printing calculator, and shredder.

    :eek:
     
  5. onsite

    onsite

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    Nope no ATXs like that. Remember the AT power on switch on the front of the PC, actually turned the AC to the PS on and off. The ATX power switch connects a logic pin to ground potetial.
     
  6. Triple6

    Triple6 Moderator

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  7. onsite

    onsite

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    where is it ? that is just a regular power supply. We were talking about power supplies on AT computers, that on the back of the power supply had a place ( that was switched) to plug the a/c for the monitor.
    oops i looked again you have to click on the picture in the upper corner. I'll bet though that the A/C is not switched on / off with the power switch like the AT ones were ... so it may not be a "true". is there a description
     
  8. kiwiguy

    kiwiguy

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    The modern PSU's with the IEC power socket for the monitor is not switched.

    Nobody usually switches monitors these days anyway, they go to power save mode when the video signal is lost, drawing about 3 watts only.
     
  9. qldit

    qldit

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    Good Evening All, yes, it is amazing Nicola Tesla's systems are used in every way by everyone on a daily basis, but the most significant design of his energy transmission system is lost.
    It is only a matter of time until his ideas are re-invented and probably make fools of his detractors.

    He was certainly the greatest mind that has ever lived.

    The amazing thing was that his designs were virtually tested and modified in his mind before they were actually created, so his designs operated from initial construction.

    His withdrawal from the Philadelphia Experiment was typical of his incredible ability to understand adverse implications of designs.

    So we are stuck having to use his power system with his transformer designs with leads.
    qldit.
     
  10. onsite

    onsite

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    Didn't Tesla burn out the turbine driven generators at Cedar Rapids ( or where ever it was)
    When he was doing an experiment to transver current through the air. Then he went to the generating plant and rebuilt the generators , making them even more efficent.
    I think also was there a court case in the 30's that the out come was that Tesla owned 60% of the first radio patent and Marconi the other 40%. Wasn't Edison in on it too. ?
     
  11. qldit

    qldit

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    Something after that kind of thing, but the power station burnout was actually caused by a design alteration where the neutral bus was earthed, which was the real reason for the burnout.
    Having an earthed power buss was not Tesla's original idea, apparently.
    It is the earthed arrangement that makes mains systems dangerous.
    This is an arguable area. (LOL!)
    The experiment at the time of the power station burnout involved oscillatory stimulation of the earth's crust as far as I know, and involved very high voltages which caused the winding insulation in the alternators to break-down.
    This particular technology gets pretty complex. It has been pursued in other places.

    The experiment I was inferring was the radio-frequency energy transmission system where devices were able to use tuned circuits to absorb the transmitted energy thus not require power leads. (Wireless energy transfer)
    Theoretically this would appear as a very lossy method of transfer but apparently Tesla had considered this aspect.
    This was the current through the air system.
    I believe it was in NY with a large wooden sphere antenna system which was torpedoed by bureaucracy.
    It was interesting that when he originally designed the alternators at Niagara, there was also a problem with the actual turbines which he was also instrumental in redesigning.
    There were many other incredible instances of genius also, truly amazing stuff.

    His work with Edison was also exemplary and in the long distance telephone system design, mainly in Europe.
    Apart from designing vehicle ignition systems and heterodyning radio systems he was way up there with mechanical as well as electrical stuff.
    So we are stuck with leads! (LOL!)
    qldit.
     
  12. onsite

    onsite

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    I thought it burned down
     
  13. Triple6

    Triple6 Moderator

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    Thats wierd, the link changed.
     

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  14. onsite

    onsite

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    It's been Hijacked.:)
     
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