Link to this headingMotor

Link to this headingServos

  • 1 pulse is a single step
  • each servo has a step angle and roates that much every step

Link to this headingSteppers

  • Angular Motion depens on how long it is turned on.
  • Can be AC or DC

Link to this headingAC Motor

The speed is controlled by

  • the number of windings.
  • Frequency of the AC.
  • The load that is being pushed back against the motor

Link to this headingDC Motors

Link to this headingBrushed

  • Uses electro magnets.
  • Polarity is changed when the drum is rotated to a new section and the brushes make contact with the circuit

Link to this headingBrushless

  • Uses permanent magnets
  • Uses magnetic fields to generate movement.
  • Usually uses a three phase DC where the windings are cycled from positive then negative then neither.
    • Uses MOSFETs to cycle these phases
  • To detect where the motor is in its cycle you can use
    • Because of the magnets and changing magnetic fields for the wires there is Voltage that is generated on each of the septate wires pairs.
      • A set of Resistors to compare the voltage to see what state the motor is in and what state it needs to transition to.
    • Hall effect sensors to detect where in the rotation the driver currently is.