Motor control problem
Posted: Mon Apr 08, 2013 11:07 pm
Hello Dan,
I have build the magnetic loop with the motor control according to your design.
My problem is that I cannot tune the capacitor properly: the tuning speed is way too fast.
Even the fine tune position is too fast, and I wonder how you have been able to achieve a proper tuning.
I have used exactly the same components (ordered via the links that you have provided - VERY useful!) and I have modified the servo motor with success.
I assume that the pulse width is critical for a proper activation of the motor, and that only the repetition rate must be variable for the tuning speed.
IMy experience is that the motor does rotate at all at very low pulse rates, and I cannot find an optimum pulse width until now.
Maybe you can give me some advice how to make the motor control more smooth and accurate, and how much I have to deviate from your original design.
Thanks in advance for your reply,
73's, Tom
PA2TSL
The Netherlands
I have build the magnetic loop with the motor control according to your design.
My problem is that I cannot tune the capacitor properly: the tuning speed is way too fast.
Even the fine tune position is too fast, and I wonder how you have been able to achieve a proper tuning.
I have used exactly the same components (ordered via the links that you have provided - VERY useful!) and I have modified the servo motor with success.
I assume that the pulse width is critical for a proper activation of the motor, and that only the repetition rate must be variable for the tuning speed.
IMy experience is that the motor does rotate at all at very low pulse rates, and I cannot find an optimum pulse width until now.
Maybe you can give me some advice how to make the motor control more smooth and accurate, and how much I have to deviate from your original design.
Thanks in advance for your reply,
73's, Tom
PA2TSL
The Netherlands