To show some of the results we have some captures taken from the oscilloscope, so we used a higher frecuency in order to being able to distinguish the duty cycles of the PWM, of course we didin´t use the motor for these, because the rotating speed was higher than the one it can handle, so we only measure the outputs of the microcontroller. The next figure shows the captures:

• Figure (A) shows the sine wave with a scale of 100ms/division, Figure (B) shows it with a scale of 250us/division and Figure(C) with a scale of 100us/division, these three where measure from the pin PE08 to the PE09, for being able to show the complete cycle of the sine wave.

• In Figure (C) you can see how the duty cycle of the PWM changes, and it is completly symmetrical.

• Figure (D), for this one we used two channels, to show the 120 degrees differences between the waves.

Finally we have a video to show the increase of the speed as we press the user button, follow this link to watch it: http://youtu.be/Ssw2zMkoWSk

Presentation: http://prezi.com/k0senvugjq7x/proyecto-de-plataformas-modulo-c/

INDEX