basic difference between p,i d and pid controller

Discussion in 'Homework Help' started by vead, Mar 29, 2012.

  1. vead

    Thread Starter Active Member

    Nov 24, 2011
    621
    8
    hello

    can anyone tell me please
    what component is use to create p, i, and d controller circuit
     
  2. steveb

    Senior Member

    Jul 3, 2008
    2,433
    469
    PID control can be implemented with one opamp circuit, or with a microprocessor system. In addition, both methods require a measurement system to monitor the variable under control. Also, some type of driver circuit is needed to drive the system.

    I'd go into more detail, but there are tons of books, articles and web sites that give all the details.

    Here are two links ...

    http://en.wikipedia.org/wiki/PID_controller

    http://electronicdesign.com/article/analog-and-mixed-signal/what-s-all-this-p-i-d-stuff-anyhow-6131
     
  3. MrChips

    Moderator

    Oct 2, 2009
    12,446
    3,362
    In a nutshell,

    P = proportional
    I = integral
    D = derivative

    So, if you are using hardware to implement an analog PID controller, you will need

    P = amplifier
    I = integrator
    D = differentiator

    and finally, a summing amplifier to sum the three signals.
     
  4. vead

    Thread Starter Active Member

    Nov 24, 2011
    621
    8
    hi
    its mean to implement p controller we can use amplifier circuit,
    integrator for i controller differentiator for d controller
     
Loading...