Brushless DC Motors

Brushless DC motor may be described as an electronically commuted motor which does not have brushes. These types of motors are highly efficient in producing a large amount of torque over a vast speed range. In brushless motors, permanent magnets rotate around a fixed armature and overcome the problem of connecting current to the armature. … Read more

Permanent Magnet DC Motor or PMDC Motor | Working Principle & Construction

In a DC motor, an armature rotates inside a magnetic field. The basic working principle of DC motor is based on the fact that whenever a current carrying conductor is placed inside a magnetic field, there will be mechanical force experienced by that conductor. All kinds of DC motors work under this principle. Hence for … Read more

Types of DC Motors And Their Applications

A DC motor (direct current motor) has a lot of applications in today’s field of engineering and technology. From electric shavers to automobiles – DC motors are everywhere. To cater to this wide range of applications – different types of DC motors are used depending on the applicaition. The types of DC motor include: Permanent … Read more

DC Shunt Motor: Speed Control, Characteristics & Theory

A DC shunt motor (also known as a shunt wound DC motor) is a type of self-excited DC motor where the field windings are shunted to or are connected in parallel to the armature winding of the motor. Since they are connected in parallel, the armature and field windings are exposed to the same supply … Read more

Series Wound DC Motor or DC Series Motor

A series wound DC motor like in the case of shunt wound DC motor or compound wound DC motor falls under the category of self-excited DC motors, and it gets its name from the fact that the field winding in this case is connected internally in series to the armature winding. Thus the field winding … Read more

Compound Wound DC Motor or DC Compound Motor

A compound wound DC motor or rather a DC compound motor falls under the category of self excited motors, and is made up of both series the field coils S1 S2 and shunt field coils F1 F2 connected to the armature winding as shown in the figure below. Both the field coils provide for the … Read more