24V PWM 50A Motorcontroller

Discussion in 'General Electronics Chat' started by mejlby, Nov 2, 2013.

  1. mejlby

    Thread Starter New Member

    Apr 26, 2013
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    1
    Hey all

    I am looking for a circuit to a 24V PWM motorcontroller that can handle about 50A and about 10-20kHz.

    If some one has a link to a good and simple circuit, I'll be happy to hear from anyone who knows where i can find it.

    Best regard

    Tonny
    (From Denmark)
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
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    Last edited: Nov 2, 2013
  3. mejlby

    Thread Starter New Member

    Apr 26, 2013
    28
    1
    Thanks a lot Max

    I do not think this circuit can handle 50A !! it´s design for 5-7A

    Tonny
    (From Denmark)
     
    Last edited: Nov 2, 2013
  4. MaxHeadRoom

    Expert

    Jul 18, 2013
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    That is why I suggested beefing up the power device, Mosfet in this case, they are often paralleled in this application in place of a single device.
    That is the only device required to carry the current.
    Max.
     
  5. mejlby

    Thread Starter New Member

    Apr 26, 2013
    28
    1
    I'm sorry I did not understand what you meant .... yes of course I can add more mosfet

    What is "IGBT"?

    I have read a lot about Mosfet but I have not figured out what is meant by a mosfet is "linear" or "saturated". Is it a relationship between V-gate and current drain / source? Can you explain this to me?

    Tonny
    (Denmark)
     
  6. MaxHeadRoom

    Expert

    Jul 18, 2013
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    IGBT Insulated Gate Bipolar Transistor.

    There is plenty of information on both on the International Semi site, including app notes.
    http://igbttool.irf.com/
    See the PDF on Mosfet characteristics versus IGBT.
    Max.
     
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