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Can i use the brake controller

Discussion in 'Ice Management' started by Jeffwich, Nov 22, 2009.

  1. Jeffwich

    Jeffwich Member
    Messages: 41

    Can i use the brake controller to run my tailgate spreader? I did search and found nothing about it. Thanks Jeff
     
  2. grf_1000

    grf_1000 Senior Member
    Messages: 295

    i see a draw back, it would start the 12v motor every time you stepped on your brake. i dont see why it wouldnt supply the power to the motor. are you thinking of just wiring it to the 7 way plug? maybe take the feed power wire to the brake controller and put a on/off toggle on it so you can cut the power to it so you can shut it off.
     
  3. cretebaby

    cretebaby PlowSite Veteran
    Messages: 4,162

    Huh????????????:confused:
     
  4. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    Interesting idea. I presume you are looking to create a variable speed drive. The brake controllers are good for about 30 amps. What's the spreader draw.
     
  5. shovelracer

    shovelracer Senior Member
    Messages: 525

    I dont see why its not possible. That is if you want to salt everytime your braking. You could easily make one as well with a variable resistor and a 2 way switch, but real controllers have overload circuits and some other features which protect your system.
     
  6. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    I don't think the variable speed controllers use a variable resistor, at least not the final drive. You're talking about a 500 watt varistor. The heat output would be incredible. I would suspect they use an SCR or triac to switch it on and off at a high frequency.
     
    Last edited: Nov 22, 2009
  7. Jeffwich

    Jeffwich Member
    Messages: 41

    You can turn the brake controller to zero and power is off now. Im not sure if it would work thats why im asking for help.
    Thanks guys Jeff
     
  8. shovelracer

    shovelracer Senior Member
    Messages: 525

    I would imagine that if you ran continuous power through a switch to the brake input it could work. You would be giving up any smart features like overload protection, so if your spreader gets bound up and the controller keeps feeding power you could cook the motor. I guess as long as your controller can handle the motor amp draw and the wiring is adequate there isnt any reason it couldnt work.
     
  9. shovelracer

    shovelracer Senior Member
    Messages: 525

    To simplify it should work in theory. Electric motors speed is determined by volts. More volts more RPM. A variable controller regulates the volts being sent to the device. This changes the RPM.
     
  10. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    For some reason I was under the impression that the brake contollers actually regulated the current flow, the voltage stays current at 12V. I'll have to check that out....
     
  11. RLM

    RLM PlowSite.com Addict
    Messages: 1,270

    There has to be a cheaper varible speed switch out there, brake controlers are $50 minimum (mine were more). If it burns up you'll have to replace it plus do it right, why not just do it right from the start ?
     
  12. Jeffwich

    Jeffwich Member
    Messages: 41

    The voltage does change so that should work. I just have to see how much much amp draw on the motor.
    Jeff
     
  13. Jeffwich

    Jeffwich Member
    Messages: 41

    Its either this or on a on/off switch
    Jeff
     
  14. cretebaby

    cretebaby PlowSite Veteran
    Messages: 4,162

    ??????????? :confused:

    You can't get a new (or used) controller?

    They are for sale everyday on here. ;)
     
  15. JohnnyRoyale

    JohnnyRoyale 2000 Club Member
    Messages: 2,935

    I still dont understand why.