For reversing the direction of an electric current.
Electricity, device transforming alternating current produced by dynamo into direct current, especially segmented drum bearing brushes which collect the current.
Device in a DC (direct-current) electric motor that reverses the current flowing in the armature coils as the armature rotates.
A DC generator, or dynamo, uses a commutator to convert the AC (alternating current) generated in the armature coils into DC. A commutator consists of opposite pairs of conductors insulated from one another, and contact to an external circuit is provided by carbon or metal brushes. + prikaži više