Halil G=FCr wrote:
> I have developed an application that drives a sensored brushless dc motor
> with a pic24f,
> what my problem is that sometimes the motor doesnt start. i had to give t=
he
> motor a start by hand... after the start everything works fine. im checki=
ng
> the pwm signals for corresponding HallEffect, the pwm is there but motor
> doesnt starts well. i did some research and assigned a high duty cycle at
> start(almost 90%) then decrease it slowly but no change,
> Does anybody know what is wrong or special with the start-up? how can i m=
ake
> the motor start?
>
>   =

make sure you haven't burnt out a winding.
-- =

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