Specify Op-amp for Servo Driver Application

Discussion in 'General Electronics Chat' started by navidelec, Sep 28, 2014.

  1. navidelec

    Thread Starter New Member

    Jul 12, 2014
    29
    0
    Would you mind help me on defining the op-amp with this range for Servo valve Control circuit application.

    On circuit DC voltage is: 27 Vdc
    and the servo operating current on 27 Vdc is 1 Amp.
     
  2. Sensacell

    Well-Known Member

    Jun 19, 2012
    1,131
    267
    How about the LM675?

    Depending on the valve, a PWM circuit might end up being smaller and cheaper, once you factor in thermal design issues.
     
  3. navidelec

    Thread Starter New Member

    Jul 12, 2014
    29
    0

    The operating temprature range is 0 to 70 C which is not so good for my purpose
    tnx
     
  4. Sensacell

    Well-Known Member

    Jun 19, 2012
    1,131
    267
    What is your required operating temp range?
     
Loading...