best IC for a DC motor control

Discussion in 'The Projects Forum' started by wewe, Apr 21, 2010.

  1. wewe

    Thread Starter Member

    Apr 9, 2010
    hello , i want to control w dc motor 1500 watts and 280 input voltage
    anyway i need a simple IC to do it
    something that can generate pwm , maybe 2 complementary pwms with a deadtime (for the H bridge)
    and if this ic is suitable for a feedback loop for correction , it would be much better
    i was thinking about the sg3524 , i've heard that many used to control dc motors with that but i don't think that it can create a deadtime for pwms to prevent shoot through in a mosfet h bridge
  2. retched

    AAC Fanatic!

    Dec 5, 2009
    Ummm.. You would fry the living car-rap out of that poor sg3524.

    I think what are you thinking of using to pulse the 1500 watts at whatever PWM rates you are thinking of?

    That is a lot of back emf and inductance to deal with.

    What is the function of the motor? Is it continuous duty?
  3. kingdano

    Senior Member

    Apr 14, 2010
    you should look into back emf control - i am not familiar with techniques for it - but i am sure others here are.

    that will likely be the biggest obstacle to overcome.

    that is a big boy motor.