Direct Current Motors

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Converting direct current electrical power into mechanical power, a direct current motor can be used in a variety of industrial settings. Smaller DC motors are used in things like tools, toys and consumer appliances, though larger ones are used in settings such as the automotive industry and provide a great deal more power. These larger types are also seen in lifting and hoist applications, or for the drives that are used in steel manufacturing mills. Unlike universal motors or AC motors, direct current motors can only be powered by direct current. As such, they are frequently found being powered by batteries. Brushless direct current motors are among the most frequently used. They have permanent magnets in the rotor and electromagnets which are housed inside of the device. The brushless design does not always produce the level of torque that brushed DC motors do, but they are mechanically simpler because they do away with the need to transfer power from outside the motor to its spinning rotor and are therefore considered to be highly reliable. An iron-core DC motor is another popular type which possesses a stationary set of magnets in the housing. In a typical design, its iron-core armature will also have windings of insulated wire that are wrapped around it in order to concentrate the power of the magnetic field generated.