Dc Motor

Discussion in 'General Electronics Chat' started by iaaly, Jun 28, 2009.

  1. iaaly

    Thread Starter New Member

    Jun 28, 2009
    Hello everyone.

    I am in a project that drive a dc motor with a PIC , L298 .. i have designed the circuit , and implemented the motor to turn in 2 directions and different speeds , due to PWM signal . The motor is without load.

    My problem is , that i want to stabilize the speed of the motor even if a i have put a charge to the axe of the rotor.

    I have some ideas about doing PID , that compare the output of the motor with the reference , and regrading the result , control the speed of the motor by exceed the PWM duty cycle or something like that..

    any help about the speed control ??

    Best regards
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    First you have to decide how to monitor the speed. Based on that it should be easy to use that signal as negative feedback.