PWM and dither

OK, let's use English, for this is an English newsgroup. My point is that from the solenoid viewpoint there is very little difference between a "high" PMW frequency with a linearly superimposed dither frequency and a PWM that produces the same frequency spectrum as PWM+dither. If you place the dither frequency above omega-not, that is above the closed-loop bandwidth, you are using that frequency for two purposes at the same time, without the complication of adding an extra dithering frequency.

Gene

Epsilon Rho ha scritto:

Thank you for your advices. I'll keep in mind developing my project.

Thank you again, Pasquale.