Hello!
I am working with servos alot lately, and I have been wondering. When you control a servo using a PWM signal, is it the duty cycle or the amplitude of the signal that determins which position the servo has? I realize that a PWM signal will simply be interpreted as a voltage if you measure it, but how does it then know the difference between PWM signal using 3v and 5v. Because those will result in different voltages using same duty cycle, however, my servo interprets them as the same angle still.
Also, when you apply a PWM signal to the motor, it will "remember" the signal for some time without applying it again. How does it do this? I vaguely remember reading it does this using a capacitor that holds the set voltage for some time, before being discharged.
Thank you for any replies in advance!
I am working with servos alot lately, and I have been wondering. When you control a servo using a PWM signal, is it the duty cycle or the amplitude of the signal that determins which position the servo has? I realize that a PWM signal will simply be interpreted as a voltage if you measure it, but how does it then know the difference between PWM signal using 3v and 5v. Because those will result in different voltages using same duty cycle, however, my servo interprets them as the same angle still.
Also, when you apply a PWM signal to the motor, it will "remember" the signal for some time without applying it again. How does it do this? I vaguely remember reading it does this using a capacitor that holds the set voltage for some time, before being discharged.
Thank you for any replies in advance!