I want to implement Field Oriented Control for a BLDC which i used to drive with 6-step Trapezoidal Commutation.
I checked many application notes and i think i got the intuition correct. What got me wondered is if Zero is powerfull enough to do that.
The general layout is like the following.
I will measure the current and the rotor angle - which is done by external hardware and send them to Arduino, which will process em with appropriate transformations and calculate a correction voltage to be applied to motor terminals.
This process will be done around 10000 times a sec and from what i have read Zero should be enough to do that. An application note suggests that a 60 mhz processor does that at % 40. I would like a clarifitication if i am right or wrong.
Secondly, to apply the correction voltage to the motor terminals, i want to use space vector modulation which seems to require 6 syncronous PWMs which should also run around 10 or 20 kHz. This part seems to be tricky since i was using just 3 pwms to control BLDC, keeping the highside MOSFETS always open.
As far as i know Zero offer 6 Pwm pins but would they be enough to realise a space vector modulation
Any suggestion or correction is much appreciated