The first type of motor built is still in widespread use In the late 1800s, several inventors built the first working motors, which used direct current (DC) power. After the invention of the induction ...

As seen in the left diagram of Figure 1, the brushed DC motor relies on mechanical commutation to switch the polarity of the magnetic field between the rotor—also known as the armature—and the stator.

1. Varying the armature voltage: This is the most fundamental method based on the principle that the speed of a DC motor is directly proportional to the voltage applied to its armature. This technique ...

Components The commutator, brushes, rotor and stator make up the four basic parts of a DC motor's design. The stator creates a magnetic field and sets the stage, whether the magnets it houses are ...

Abstract In this paper, the steady state performance characteristics of a separately excited DC motor fed by a non-isolated positive output DC-DC converter of high voltage gain Zeta topology are ...

Heat dissipation is another key challenge. Because the heat is generated inside the motor in the windings around the rotor (the armature), the motor casing typically needs ventilation slots and relies ...