Microchip brush DC motor control scheme

Brush DC motor reversing through the brush. The following are some key points about the brush DC motor:

Typical rotor (i.e. armature) on winding, and in the end is connected with acommutator

The electric brush and the reversing part of connection and disconnection, whichtransfers energy to the armature

Stator permanent magnet DC motor (or an external barrel) will have two or morepermanent magnetic pole

Energized windings and stator magnets of opposite polarity interact each other, which leads to the rotation of the rotor and the stator phase until

When the rotor is aligned with the stator, the electric brush and the commutatorcontact and conduction down a winding

Because the voltage / speed and torque and the applied current is proportional to, so the brush DC motor control is relatively easy. Due to the armature winding, and rotoris very heavy, big inertia makes it difficult to start and stop. Winding on the rotor willproduce heat, and difficult heat dissipation.