Dyson digital motor

How the Dyson digital motor works

• 1 1 Circuit board and capacitors
  

  Microprocessors control motor timing and speed, adjusting up to 3,000 times a second. The capacitors supply power to the circuit board and take the pressure of high-frequency currents away from the battery.

• 2 2 Stator
  By sending a current through coiled copper wire, a strong electromagnetic field is produced. The stator (controlled by the microprocessor) rapidly switches the polarity of this field between north and south.

• 3 3 Neodymium magnet
  Neodymium is the strongest magnetic material known - ten times lighter and ten times more powerful than your average fridge magnet. In the Dyson digital motor, it spins 100,000 times a minute as it reacts to the alternating electromagnetic fields produced in the stator.
• 4 4 Impeller and vane diffuser
  The impeller is aerodynamically engineered with continuously curving blades to spin at extreme speeds (in fact, there is barely a 2D section to any part of the blade surface). The airflow it produces is channeled up and through the vane diffuser, cooling components on the way.