Welcome to this classroom installment on dc motors. DC Motors are motion components that take electrical power in the form of direct current (or some manipulated form of direct current) and convert it into mechanical rotation. The motors do this through the use of magnetic fields arising from electric currents through their windings to spur the rotation of a rotor fixed with an output shaft.
This classroom details the specifics of such operation in dc brush motors, also called permanent-magnet (PM) dc motors … as well as the use of these motor types in various in motion designs. We also cover brushless dc (BLDC) motors. These employ magnets instead of brush-commutator assemblies for commutation to operate much like shunt-wound motors, but with field flux from magnets instead of winding current.
DC Motors Classroom
GEAR TYPES AND USES
Comparing the different types of dc motors
Where brush dc motors make sense
Minimizing brush wear
Brush dc motors are a mature technology that’s been around for more than a century.
Brushed dc motors provide high speed and torque, are simple to operate, and are generally inexpensive.
There are three dc motor subtypes: DC brush motors, dc permanent-magnet (PM) motors, and dc universal motors.
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