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Oct 30, 2016 · As the magnetic field strength of a permanent magnet is fixed it cannot be controlled externally, field control of this type of dc motor cannot be possible. Thus permanent magnet DC motor is used
Author: The Curious One
Permanent Magnet Motor Free Energy. A permanent magnet motor is a type of electric motor.All electric motors rely on the magnetic interaction between the stator frame (the fixed housing of the motor) and the armature or rotor (the part of the motor that moves).
A permanent magnet motor would not produce energy and would not be a perpetual motion machine. Instead, it would simply use the electromagnetic energy delivered by the angular momentum of the electron in the form of magnetic forces.
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Electric motor – Permanent-magnet motors: The magnetic field for a synchronous machine may be provided by using permanent magnets made of neodymium-boron-iron, samarium-cobalt, or ferrite on the rotor. In some motors, these magnets are mounted with adhesive on the surface of the rotor core such that the magnetic field is radially directed across the air gap.