Berekening Motor

http://www.ec21.com/product-details/Hair-Dryer-DC-motor-RS--4678644.html

The motor

The motor in the hair dryer is a direct current motor. The motor consists of a stator and a rotor and has the following principle of working:
- Contradictory poles attract each other
- Identical poles reject each other
That resulted in a rotating movement

We also need a AC-DC converter to convert a alternating current to a direct current. That happens with a bridge rectifier, which consists of 4 diodes.

The current always flows in only one direction through the resistor

     

           

                                                                    Alternating current

                                                              

Direct current

Motor: Commutator

A direct current motor needs a commutator, which can change the direction of the current through the coils.

Here you see the principle of the the commutator:

When it rotates, it changes the direction of the current

Motor: Description