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  • Author Author: Kilohercas
  • Date Created: Date Created
  • Views 799 views
  • Likes 1 like
  • Comments 3 comments
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Kilohercas

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  • without any PID loop tuning, i get 5C initial overshoot, and after that it holds temperature at +2C overshoot and 0.2C undershoot of setpoint.
    I will use inverted exponential function to throttledown  pwm when in gets closer to setpoint

     

    while(1)

    {

        Delay(0xFFF);

        temperatura=(ADC_SAR_2_GetResult16()*2.0480f)/(0.005f*4096.0f);

        stabilizavimas+=(150-temperatura)*10;

        if(stabilizavimas<0)

        {

            stabilizavimas=100;

        }

        if(stabilizavimas>32767)

        {

            stabilizavimas=32767.0f;

        }

        TEMP_PWM_WriteCompare((int)(stabilizavimas));

    }

     

    yes, it is only PI

Comment

  • without any PID loop tuning, i get 5C initial overshoot, and after that it holds temperature at +2C overshoot and 0.2C undershoot of setpoint.
    I will use inverted exponential function to throttledown  pwm when in gets closer to setpoint

     

    while(1)

    {

        Delay(0xFFF);

        temperatura=(ADC_SAR_2_GetResult16()*2.0480f)/(0.005f*4096.0f);

        stabilizavimas+=(150-temperatura)*10;

        if(stabilizavimas<0)

        {

            stabilizavimas=100;

        }

        if(stabilizavimas>32767)

        {

            stabilizavimas=32767.0f;

        }

        TEMP_PWM_WriteCompare((int)(stabilizavimas));

    }

     

    yes, it is only PI

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