You are controlling an angle type, servo motor which moves from -90 to +90 degrees. The period of the PWM signal is 20 milliseconds and the pulse width for the 0 degree position 1.5 milliseconds. If the modulus of the period counter is 3,749, what is the pulse width count for the "O" position. For the setup in Question 3, what are the pulse width counts for the -90 degree position which is 1.0 milliseconds and the pulse width count for the +90 degree position which is 2.0
You are controlling an angle type, servo motor which moves from -90 to +90 degrees. The period of the PWM signal is 20 milliseconds and the pulse width for the 0 degree position 1.5 milliseconds. If the modulus of the period counter is 3,749, what is the pulse width count for the "O" position. For the setup in Question 3, what are the pulse width counts for the -90 degree position which is 1.0 milliseconds and the pulse width count for the +90 degree position which is 2.0
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
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Transcribed Image Text:3. You are controlling an angle type, servo motor which moves from -90 to +90 degrees. The period of the PWM signal is 20 milliseconds and the pulse width for the O degree position
is 1.5 milliseconds. If the modulus of the period counter is 3,749, what is the pulse width count for the "O" position.
4. For the setup in Question 3, what are the pulse width counts for the -90 degree position which is 1.0 milliseconds and the pulse width count for the +90 degree position which is 2.0
milliseconds?
5. You need to know the resolution of the control. How many counts are there for 1 degree of motion?
6. You are debugging the setup in questions 3, 4 and 5 but the PWM period is way off. You verified the PWM clock is 24 MHz, the modulus is 3,749 but the PWM period is suppose to
be 20 milliseconds (50 Hz), what is the correct prescale setting?
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