necessary circuit to control the speed of my DC MOTOR

Discussion in 'General Electronics Chat' started by Petergombasek92, Dec 10, 2014.

  1. Petergombasek92

    Thread Starter New Member

    Dec 3, 2014
    6
    0
    I bought my new motor from Jay car, below is a link relating to the exact motor

    http://www.jaycar.com.au/productView.asp?ID=YM2776

    Here are the supplied specs on the motor km working with:


    • Operating Range (V) 6-18


    No load
    • Voltage (V): 12
    • Speed (rpm) 9700
    • Current (A) 1.3

    At Stall
    • Torque (kg.cm) 6.0
    • Current (A) 57

    At Max Efficiency
    • Efficiency (%) 73
    • Power (W) 52
    • Speed (rpm) 8490
    • Torque (kg.cm) .60
    • Current (A) 6.0

    Dimensions
    • Diameter (mm) 42
    • Total Length (mm) 85
    • Shaft Length (mm) 19
    • Shaft Diameter (mm) 5.0
    • Mounting Thread M4

    Can someone please help me in determining the appropriate circuit to control this motor.....
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,551
    2,374
    Seems like Déjà vu all over again!

    There are small PWM speed controllers on ebay for a few $ from H.K. that hardly makes it worth building.
    They are simple 555 - Mosfet designed.
    Max.
     
  3. MaxHeadRoom

    Expert

    Jul 18, 2013
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    cmartinez likes this.
  4. cmartinez

    AAC Fanatic!

    Jan 17, 2007
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  5. BobTPH

    Active Member

    Jun 5, 2013
    782
    114
    I hope that is a typo and the stall current is 5.7A not 57A. If it is 57A you are going to need a massive controller (and power supply)

    Bob
     
  6. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,551
    2,374
    According to all the other numbers it appears that it should be 5.7a.
    That would be 684watts, which would be a little OTT for that motor.
    Even the peak torque would not normally be that high for that motor.
    Max.
     
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