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D.C

D.C . Franklin Preuninger. What is it. Direct current ( DC ) is the unidirectional flow of electric charge . Direct current is produced by such sources as batteries , thermocouples , solar cells , and commutator -type electric machines of the dynamo type. What are the parts.

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D.C

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  1. D.C Franklin Preuninger

  2. What is it • Direct current (DC) is the unidirectional flow of electric charge. Direct current is produced by such sources as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type.

  3. What are the parts • The parts are magnate,wire,brushes,and a split loop

  4. How it works • The commutator rotates with the loop of wire just as the slip rings do with the rotor of an AC generator. Each half of the commutator ring is called a commutator segment and is insulated from the other half. Each end of the rotating loop of wire is connected to a commutator segment. Two carbon brushes connected to the outside circuit rest against the rotating commutator. One brush conducts the current out of the generator, and the other brush feeds it in. The commutator is designed so that, no matter how the current in the loop alternates, the commutator segment containing the outward-going current is always against the "out" brush at the proper time. The armature in a large DC generator has many coils of wire and commutator segments. Because of the commutator, engineers have found it necessary to have the armature serve as the rotor(the rotating part of an apparatus) and the field structure as the stator (a stationary portion enclosing rotating parts). Which is the inverse of an AC Generator.

  5. Uses and why • DC is commonly found in many low-voltage applications, especially where these are powered by batteries, which can produce only DC, or solar power systems, since solar cells can produce only DC.

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