A Definition Of Dc Electric Motors
There are two main types of electric motors: AC and DC. The difference between the two types is the way the current of electricity is delivered to the motor. DC or direct current motors are most often used for their ability to provide speed control of the motor.
DC motors were the first motor type. There are two types of DC motors. Brush DC motors Use a series of brushes and rings to conduct the electric current. Brushless Dc motors use more intricate coils to conduct the electric current. All DC motors provide a continuous current that flows in one direction. This means that the motor spins in one direction at a constant rate.
DC current is most commonly found in the typical battery. The negative and positive ends are easily recognized and it is simple to see that the current of energy flows in one direction. A battery is the easiest way to see how a general DC motor works.
The reason DC motors are able to produce a constant current is due to the way it is made. The easiest way to think of a DC motor is to think of a battery. Every battery is DC. The battery has a negative and positive side and the energy flows one direction. In a DC motor the coils that make up a DC motor are constantly staying in contact with the energy which allows it to continuously move the current along.
DC electric motors are often used in things like cell phone or fans. There is a loss of power when the motor has to transmit currents for a long distance, so these motors are not great for applications like electrical transformers. Other items that may require a lot of energy to start are also not DC motor powered. Brushless DC motors do not cause interference noise and that makes them ideal for use in items like DVD players. DC motors are also liked because they do not get hot as they run like typical AC motors.
DC motors generally are more complex than AC motors. This is due to the fact that they need coils and brushes to keep the current constant. DC motors are common in many everyday items. Without these motors or DC current there would never have been the development of AC motors or many other useful items. DC electric motors are an important part of everyday life, from batteries to DVD players, people use them everyday.