Ask Experts Questions for FREE Help !
Ask
    tanba's Avatar
    tanba Posts: 2, Reputation: 1
    New Member
     
    #1

    May 5, 2008, 04:32 AM
    benefit of bldc motor compare with pmsm motor or blac motor
    in the name of god
    hi every body
    what is benefit of brush less dc motor and brush less ac motor. And when we use bldc and when blac? What is different of them? I know that bldcs have trapezial emf and blacs have sin emf.
    quasar's Avatar
    quasar Posts: 1, Reputation: 1
    New Member
     
    #2

    Oct 28, 2008, 02:09 AM
    Point 1: The brushless AC motor (BLAC) is similar to the BLDC motor but the back EMF is sinusoidal rather than trapezoidal.
    Point 2:As we know Torque in a permanent magnet motor is produced by the product of the current with the back EMF summed over the three phases.
    In a BLDC motor :The BLDC motor has a trapezoidal back EMF and so the strategy is to apply a three phase square wave current to the stator windings.
    In a BLAC motor :The stator is driven with a sinusoidal current that is aligned with the back EMF.
    The above is the main difference
    Hope I have answered your question.
    All the best

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

5hp briggs and stratton tiller motor need model # or replacement motor [ 3 Answers ]

I have an earthquake tiller model 5020 with a 5hp briggs and stratton motor that I need to replace but I can not find the model of the motor. Does anyone know which motor replaces that motor or do you know the model number of the motor that was used on that tiller?

Change 4 wire condenser motor to 3 wire motor [ 4 Answers ]

I need TO know how to wire a condenser motor. The one I am taking out is a 230 volt it has 2 brown capacitor wires and a black and white. The one I want to put in is a 230 volt/5 mfd capacitor motor. This one has a red wire a black wire and only one brown capacitor wire. How do I retrofit this....

Motor oil [ 2 Answers ]

What type motor oil for 6hp yardmachine

AC Motor [ 1 Answers ]

How Do You Rewire a AC Motor that is used on Conveyors?


View more questions Search