Brushless Sensorless Motor Controller

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Uploaded by on Dec 5, 2009

Brushless Sensorless Motor Controller - http://thomaspfeifer.net/quadrocopter_selbstbau_avr.htm


harddisk disk drive festplatte sensorless brushless motor controller controller blc EK5-0002 avr atmega8 mosfet

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  • nice, how does it works ?

  • ive been in electrinics for years and i dont understand why building a brushless motor controller is hard? or why you need a sensor?

  • 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?

  • you made comtroller ? what ?

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