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Tutorial How to Modify a Server Power Supply for 12v

Discussion in 'DIY peripherals' started by Slider, Sep 7, 2014.

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  1. substatica

    substatica Member

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    It was the PWM frequency. I implemented some methods to enable Ultrasonic PWM courtesy of @RacingMat and the high pitch whine is gone. Thanks all.
    • Like Like x 3
    substatica, Jan 16, 2015
    #21
  2. Archie

    Archie Eternal tinkerer

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    Gone for Humans but you are likely sending all local Dogs mental :p
    • Funny Funny x 2
    Archie, Jan 16, 2015
    #22
  3. shannonb1

    shannonb1 Well-Known Member

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    that to me sounds like the Hz of the motor. 5hz vs 20hz
    • Friendly Friendly x 1
    shannonb1, Jan 19, 2015
    #23
  4. shannonb1

    shannonb1 Well-Known Member

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    NM, you solved it already. Sorry didnt see that.
    shannonb1, Jan 19, 2015
    #24
  5. RacingMat

    RacingMat Well-Known Member Gold Contributor

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    Arduino has standard 390Hz PWM and can be upgraded to silent 20kHz ;)

    • Like Like x 1
    RacingMat, Jan 19, 2015
    #25
  6. Darkhanbaatar

    Darkhanbaatar New Member

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    hi guys i have problem and i'm building 2dof wiper motor simulator but x-sim can sent signal to arduino, it think motomonster have problem, wiper motor don't move. What i do now
    Darkhanbaatar, Jan 26, 2015
    #26
  7. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    We use SimTools here @Darkhanbaatar, not X-sim.

    If you are using X-sim then you need to post your question to the X-sim forum.

    If you want to try SimTools you can, but do start your own project thread and Xsimulator members can then try and assist you.
    • Agree Agree x 1
    noorbeast, Jan 26, 2015
    #27
  8. Darkhanbaatar

    Darkhanbaatar New Member

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    ok i'm sorry i tried Simtool results is same, first i build micr oservo it is working fine and i started build big one, i used arduino + motomonster code of arduino
    Darkhanbaatar, Jan 26, 2015
    #28
  9. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Again start a new thread @Darkhanbaatar.

    In your new thread explain what you have built and include details, like have you ground isolated the wiper motors, and include pictures so we know how it is wired.

    You also need to explain what code you are using with the Arduino. There is code available for Arduino/Moto Monster/SimTools, but are you using that or something else?
    noorbeast, Jan 26, 2015
    #29
  10. substatica

    substatica Member

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    No matter the connectivity of the pins the power supply (the same model as the tutorial) fan is always on, is this what everyone else is experiencing? Are you switching the power cable as well to turn on/off the PS fan?
    substatica, Feb 1, 2015
    #30
  11. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Yes the fan remains on, that is normal @substatica and I do turn mine off at the power switch.
    • Agree Agree x 1
    • Informative Informative x 1
    noorbeast, Feb 1, 2015
    #31
  12. Rocket man

    Rocket man Member Gold Contributor

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    I wanted to know if anyone knew if you can connect 2 DPS-600PB's togehter with 1 switch to turn them on? Same as in this thread (4 and 8 on one side and 6 and 10 on the other side), but just [4,8,4,8] one side of switch and [6,10,6,10] on other side of switch. Would this one switch turn both supplies on? The power coming from each psu are still seperate( one psu for each motor), just wanted one switch to turn them both on. Just wanted to know if it would mess up the units somehow.
    Rocket man, Apr 12, 2015
    #32
  13. Nick Moxley

    Nick Moxley Well-Known Member

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    • Agree Agree x 3
    • Informative Informative x 1
    Nick Moxley, Apr 12, 2015
    #33
  14. GIB SimRacing

    GIB SimRacing Active Member

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    What Nick said, just add another contact to the switch and keep both power supplies separate.:thumbs
    You could also switch the supply voltage TO the power supplies via a emergency stop switch. That way you would only need one contact. But that obviously requires you to switch the mains voltage which can make things dangerous if not done right.
    So again, the best option would be to add a second contact to the switch.
    GIB SimRacing, Apr 13, 2015
    #34
  15. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    • Informative Informative x 1
    noorbeast, Apr 13, 2015
    #35
  16. Rocket man

    Rocket man Member Gold Contributor

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    Thanks for all the help guys!! I really appreciate all the responses! I had one of these...

    Boat-Car-12V-24V-BATTERY-ISOLATOR-Disconnect-Cut-Off-KILL-SWITCH-with-KEY-CAP.jpg
    laying around so I wanted to use the key sort of set up for both psu but I think I'll just go with 2 switches.

    I did see one of these...
    112716_11lo.jpg
    called a "Double Pole, Double Throw relay"
    "A Double Pole, Double Throw relay allows you to switch two different circuits simultaneously. The 'Double Pole' bit just means that it has two separate inputs that can be switched - and we now know what the 'double throw' stuff means. With this type of relay you can:
    - turn on two completely independent circuits
    - turn one off and one on
    - turn off two completely independent circuits"

    but I think I'll go with just 2 switches for 2 psu. Thanks again!!
    Rocket man, Apr 14, 2015
    #36
  17. madgino

    madgino New Member

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    There's no quicker, simpler, or more reliable means of converting a DPS-600. It takes all of a minute to accomplish.

    As stated above, simply bend the pins together and solder with a fine soldering tip. The non-used pins can be bent out of the way to create more room if desired but I have never found this to be necessary.

    Attached Files:

    • Winner Winner x 1
    madgino, Apr 14, 2015
    #37
  18. Nick Moxley

    Nick Moxley Well-Known Member

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    I would be weary suggesting newbies trying that method Madgino. My fear is Worst case scenario......A Pin breaks then the user is left with either diving in Far deeper than they had imagines into the wiring, or buying a new supply and starting again.


    Looks nice tho. :thumbs
    Nick Moxley, Apr 14, 2015
    #38
  19. madgino

    madgino New Member

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    Once you try it that way, you'll never go back ;)
    madgino, Apr 14, 2015
    #39
  20. Shadow041

    Shadow041 New Member

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    Does anyone know what the limits for these power supplies are? i seem to be having trouble with mine. I've got some hooked up to jrk controllers (1 for each controller) and the 25:1 gear motors from motion dynamics and have found that in certain circumstances (like if i drive off the track) the psu will shut its output to the jrk off.

    This doesnt seem to make sense as theyre rated for around 47A and supposedly the peak current handling of the jrks is 30A... Any ideas?
    Shadow041, Aug 26, 2015
    #40
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