Welcome to this installment of MC² on dc motors. Recall that 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. Output torque and speed depends on the electrical input and motor design.
In this MC² on dc motors, we detail 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.
Check out the informational resources below on these motors, and be sure to bookmark designworldonline.com/MC2 to stay current on this series.