Example: dental hygienist
Permanent overhead magnets
Found 1 free book(s)BLDC Motor Contr ol with Hall Eff ect Sensors Using the 9S08MP
www.nxp.commagnetic pole. Magnetization of the permanent magnets and their displacement on the rotor are chosen in such a way that the back-EMF (the voltage induced into the stator winding due to rotor movement) shape is trapezoidal. This allows a rectangular-shaped 3-phase voltage system (see Figure 3) to create a rotational field with low torque ripples.