All depends on your application. Low voltage units can be operated off batteries while ac types can't. Brushes need replacing and they arc and spark. All designs have pros and cons, and it's up to the user to define his/her needs and match it with the appropriate type, size and ratings.
You avoid mainly commutator associated brush and their maintenance while retaining all the advantages of DC motor.However the sad thing Brush less DC is limited a very low ratings.For larger ratings good old DC motor has to be used.
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bldc
Re: bldc
