Wednesday, April 05, 2006

afm12 - back to hystersis control

WORKS but sounds and looks terrible



try band of 50

sounds worse - looks about the same



try a band of 10

not much better - capture all three phases

phase C



phase B



phase A



I need to determine why there is no negative values of current.

I had a problem with my logic - fixed it on phase A - see below



Try for all three phases

WORKS - check different bands again

at band = 50 (setpoint = 100)

goes a bit faster, but still really noisy



I think that I should have a look at the PWM as well.

Here is the gate drive signal (low side, Phase A)



That is terrible - I need to look into that one further!!

time to go for a walk with Aya.

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