Definitions for dc motor
dc motor

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1. DC motor

   A DC motor is any of a class of rotary electrical motors that converts direct current (DC) electrical energy into mechanical energy. The most common types rely on the forces produced by induced magnetic fields due to flowing current in the coil. Nearly all types of DC motors have some internal mechanism, either electromechanical or electronic, to periodically change the direction of current in part of the motor. DC motors were the first form of motors widely used, as they could be powered from existing direct-current lighting power distribution systems. A DC motor's speed can be controlled over a wide range, using either a variable supply voltage or by changing the strength of current in its field windings. Small DC motors are used in tools, toys, and appliances. The universal motor, a lightweight brushed motor used for portable power tools and appliances can operate on direct current and alternating current. Larger DC motors are currently used in propulsion of electric vehicles, elevator and hoists, and in drives for steel rolling mills. The advent of power electronics has made replacement of DC motors with AC motors possible in many applications.

WikidataRate this definition:5.0 / 3 votes

1. DC motor

   A DC motor relies on the fact that like magnet poles repel and unlike magnetic poles attract each other. A coil of wire with a current running through it generates a electromagnetic field aligned with the center of the coil. By switching the current on or off in a coil its magnet field can be switched on or off or by switching the direction of the current in the coil the direction of the generated magnetic field can be switched 180°. A simple DC motor typically has a stationary set of magnets in the stator and an armature with a series of two or more windings of wire wrapped in insulated stack slots around iron pole pieces with the ends of the wires terminating on a commutator. The armature includes the mounting bearings that keep it in the center of the motor and the power shaft of the motor and the commutator connections. The winding in the armature continues to loop all the way around the armature and uses either single or parallel conductors, and can circle several times around the stack teeth. The total amount of current sent to the coil, the coil's size and what it's wrapped around dictate the strength of the electromagnetic field created. The sequence of turning a particular coil on or off dictates what direction the effective electromagnetic fields are pointed. By turning on and off coils in sequence a rotating magnetic field can be created. These rotating magnetic fields interact with the magnetic fields of the magnets in the stationary part of the motor to create a force on the armature which causes it to rotate. In some DC motor designs the stator fields use electromagnets to create their magnetic fields which allow greater control over the motor. At high power levels, DC motors are almost always cooled using forced air.

How to pronounce dc motor?

1. Alex

   US English

   David

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   Mark

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   Daniel

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   Libby

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   Karen

   Australian

   Hayley

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   Neerja

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How to say dc motor in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of dc motor in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of dc motor in Pythagorean Numerology is: 7

Examples of dc motor in a Sentence

1. Brian Kemp:

   President Biden took office in January of 2021, and to understand why we are in this current state of record-high inflation and costs to the average American family, people can simply track his first year of misguided policy decisions, because of our strong, fiscally conservative approach to budgeting, Lt. Governor Duncan, Speaker Ralston and I can confidently propose a state motor fuel tax suspension to curb sky-high gas prices while also returning money back to hardworking Georgians through a tax refund and an income tax cut.

2. Hyundai Motor:

   Hyundai Motor expects that on-year sales growth might slow down for the rest of 2021 amid adverse business conditions caused by the unstable supply of semiconductor chips.

3. Robert Melillo:

   If you get a child who has really strong left brain and delayed right brain, those are kids that may be labeled with attentional problems or behavioral problems or social issues, the easiest way to get their brain to become coordinated is by making their body coordinated, so a large part of what we're doing is this sensory motor interaction, building their muscle tone, building their strength, building their body spatial awareness.

4. Jordan Anderson:

   With Sage’s extensive experience in road racing and open-wheel racing, along with finishing 7th in this year’s Indianapolis 500, we knew that the road course at the famed Indianapolis Motor Speedway would be a special place for him to make his NASCAR debut with support from Montage Mountain Resorts and so many other great partners.

5. Greg McBride:

   To feel good about where inflation is headed, we need to see more than just moderation in the rate of both headline and core inflation, we also need to see moderation in price pressures across a wide range of categories that are staples of the household budget: shelter, food, electricity, motor vehicle insurance, apparel, and household furnishings and operations.

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Dc_Motor
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=dc motor