All Questions
Tagged with ac-motor brushless-dc-motor
4
questions
0
votes
0
answers
264
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Why do BLDC motors require feedback, whereas AC motors do not?
I was delving into the functional difference between 3-phase AC motors and 3-phase BLDC motors, and was wondering what would happen if a BLDC motor was run without feedback to its controller.
I found ...
- 1
2
votes
2
answers
153
views
Can we run an induction motor by sequentially applying DC voltage to the windings of stator?
We know that in induction motors, 3-phase AC input is applied to 3 windings of stator in order to generate changing magnetic flux in the rotor. What would happen if we apply 3 DC voltages ...
- 91
0
votes
2
answers
3k
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Why do some motors have high rpm while other have low even though having same power consumption
I have seen a 500w motor which run on 1200 rpm but a 300w motor with over 10000rpm . I know using a gearbox can give required rpm or torque and torque is inversely proportion to speed but how can I ...
2
votes
2
answers
716
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What does "Brushless DC is an AC induction motor with built-in speed feedback" mean?
I found a quote
which states that:
"Brushless DC" is a marketing term for "AC induction motor with built-in speed feedback."
Is it correct? What is "built-in speed feedback?"
I found a decent ...
- 63