Please explain in term of integrator & differentiator performed by opamp,actually what are they?
2007-09-12 16:38:54 · 4 answers · asked by A learner 1 in Science & Mathematics ➔ Engineering
An integrator produces an output proportional to the input over a period of time (due to the capacitor in the feedback loop). A differentiator produces an output that is proportional to the inputs rate of change.
2007-09-12 16:52:44 · answer #1 · answered by T L 2 · 0⤊ 0⤋
Speed contrl is not very difficult. What is the power of the motor? If more than 2 watts, do use a separate supply for the motor, as against any microcontrollers that you may use. Are you using any uC/ Or is it an analog controller? Try proportional first before moving to PI. PID is more difficult.. and start increasing tau of D from zero and find out if there is any improvement in step response. Keep the motor speed at about 50% by proper setting of set point. keep chaning the set point to change the speed by 10% higher and lower, to study step response. You could also see steady state error in P mode by setting Set point to a fixed value.
2016-05-18 02:46:29 · answer #2 · answered by ? 3 · 0⤊ 0⤋
Usually an integrator has a capacitor as a feedback (I.E.; connected between the output and one of the inputs), and a differentiator [usually] has an inductor instead (a resistor makes an amplifier).
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This website should explain it better:
2007-09-12 16:44:38 · answer #3 · answered by Randy G 7 · 0⤊ 0⤋
An integrator uses a resistor on the input and a capacitor for feedback. A diferentiator swaps the two. It uses a capacitor to the input and a resistor for feedback.
2007-09-12 18:41:45 · answer #4 · answered by ancient_nerd 2 · 0⤊ 0⤋