Principle Of Permanent Magnet DC Motor

Motors that use direct current are called DC motors. Brushed DC motors generate torque directly from the direct current input to the motor through a moving electromagnet and a fixed permanent magnet with internal commutation. Today to introduce you to the principle of permanent magnet DC motor

1. a force is generated when a current is passed through an inductor in a magnetic field.

2. The force generated in a conductor in a magnetic field is determined by the magnetic flux vector, the current flowing in the conductor, the length of the conductor and the mechanical force vector.

3. This force produces a torque in a rotating motor, which is determined by the number of conductors, the current flowing in the conductors, the average winding radius, the effective conductor length, the rotor torque and the magnetic flux.

4. Any conductor moving in a magnetic field generates a voltage.

5. The number of conductors, effective conductor length, radius, angular velocity, induced voltage and flux vector all affect the magnitude of the counter-electromotive force generated by a rotating motor.

6. By adding a mechanical commutator to a permanent magnet motor, a brushed type permanent magnet DC motor can be manufactured.

The above is the introduction of the principle of permanent magnet DC motor, more information, please feel free to consult Vshida micro-motor