3-2 How would you choose whether to use a brushed vs. brushless DC motor to build a Quadcopter? Which motor would you choose?
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Brushed DC motors have a rotating armature (the part that spins) and a stationary set of magnets. The brushes and commutator are used to switch the current direction in the armature, which creates the rotation. Brushless DC motors, on the other hand, have a Show more…
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List several advantages of brushless dc motors compared to conventional dc motors.
Question 1: Answer all the following parts: a- Discuss the theory of operation of a DC motor. b- What is the need for a commutator in a DC motor? What are the different types of DC motors? Draw their equivalent circuits, Draw their torque-armature current characteristics, Draw their speed-armature current characteristics, Draw their speed-torque characteristics. d- How can you control their speed? State their applications. Compare between the brushed and brushless DC motors. How do you reduce the speed of a DC motor?
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'3- What is the function of a commutator in the DC motor?'
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