Parallel ESC's ?

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  • egneg
    Fast Electric Addict!
    • Feb 2008
    • 4670

    #1

    Parallel ESC's ?

    Just thinking out loud here ... can two 120 amp ESC's be connected in parallel to make a 240 amp ESC? Has anyone tried it? I did a search but found nothing.

    Last edited by egneg; 01-10-2010, 07:06 PM.
    IMPBA 20481S D-12
  • Diegoboy
    Administrator
    • Mar 2007
    • 7244

    #2
    Great question, Parallel (voltage =same / current = doubles) interesting thought. I'm waiting to see if anyone tried it...
    "A quick temper will make a fool of you soon enough."
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bruce Lee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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    • Fluid
      Fast and Furious
      • Apr 2007
      • 8012

      #3
      No, it's not that simple. With two hooked up to the same motor, they would fight over which one ran the motor. I suspect they'd last less than a minute and would not run the boat. If you can wire the power boards together with a single control board, then perhaps.


      .
      ERROR 403 - This is not the page you are looking for

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      • m4a1usr
        Fast Electric Addict
        • Nov 2009
        • 2038

        #4
        They wouldnt be in sync 100%. Out of phase to some degree. Remember B/L motors are A/C.


        John
        Change is the one Constant

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        • graill
          Retired
          • Oct 2008
          • 389

          #5
          Thats a no Chuck. The one thing to keep in mind is the limit of the individual ESC, they might be paralleled but they will still only take their individually rated amperage before blowing.

          Comment

          • Doby
            KANADA RULES!
            • Apr 2007
            • 7280

            #6
            For the price of two 120's,,,go buy a 240..............
            Grand River Marine Modellers
            https://www.facebook.com/search/top/...ne%20modellers

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            • egneg
              Fast Electric Addict!
              • Feb 2008
              • 4670

              #7
              OK ... I thought it sounded to easy or it would have been common knowledge by now.
              IMPBA 20481S D-12

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              • egneg
                Fast Electric Addict!
                • Feb 2008
                • 4670

                #8
                Originally posted by Doby
                For the price of two 120's,,,go buy a 240..............
                If Turnigy made a 240 amp marine I would as I can get 2 120's for a little over 100 bucks.
                IMPBA 20481S D-12

                Comment

                • domwilson
                  Moderator
                  • Apr 2007
                  • 4408

                  #9
                  Originally posted by egneg
                  Just thinking out loud here ... can two 120 amp ESC's be connected in parallel to make a 240 amp ESC? Has anyone tried it? I did a search but found nothing.

                  No can do. The ESC not only provides voltage/current to the appropriate windings with the appropriate frequency and pulse width, they must also read the back EMF to determine speed and rotation. In addition, they would need to be triggered simultaneously. Plus...depending on the output design, they may not like the "bridging" of circuits and end up with a catastrophic failure of monumental proportions.
                  Government Moto:
                  "Why fix it? Blame someone else for breaking it."

                  Comment

                  • SJFE
                    Fast Electric Addict!
                    • Apr 2007
                    • 4735

                    #10
                    I remember asking this question over a year or so ago. I was equally bummed. Wouldn't it be sweet.

                    Comment

                    • Jeepers
                      Fast Electric Addict!
                      • May 2007
                      • 1973

                      #11
                      Originally posted by domwilson
                      and end up with a catastrophic failure of monumental proportions.
                      I think you might be right!

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