Im trying to create a driver for a HDD motor too, but im having some real trouble with the blind startup part, I can get the motor to speed up decently, but as soon as it reaches a decent speed it loses lock and spins down.....Im currently achieveing this by making it commutate > delay of x us > commutate > delay etc, then im doing x=x*0.995 on the interupt of a 2KHz timer. What method did you use for the intial startup?
nice, how does it works ?
rendygaul 6 months ago
ive been in electrinics for years and i dont understand why building a brushless motor controller is hard? or why you need a sensor?
wawcoldfire 1 year ago
Im trying to create a driver for a HDD motor too, but im having some real trouble with the blind startup part, I can get the motor to speed up decently, but as soon as it reaches a decent speed it loses lock and spins down.....Im currently achieveing this by making it commutate > delay of x us > commutate > delay etc, then im doing x=x*0.995 on the interupt of a 2KHz timer. What method did you use for the intial startup?
big5824 1 year ago
you made comtroller ? what ?
ipodfernando 2 years ago