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Alternator

PRODUCT - ALTERNATOR

Alternator (AC Generator)

  • An AC generator that can charge the battery even at relatively low engine speeds.
  • An electrical device that converts mechanical energy from the engine belt into electrical energy.
  • AC generated inside is rectified to DC through diodes for vehicle use.
Rotor / Stator

Rotor

  • Generates magnetic flux; when current flows, one pole piece becomes N and the other S.
  • Two slip rings on the rotor shaft contact brushes to deliver current to the coil.

Stator

  • Laminated iron core wound with three stator coils.
  • As the rotor turns, three-phase AC is induced in the coils.
Rectifier / Regulator

Rectifier

  • Uses six diodes to rectify three-phase AC into DC.

Regulator

  • Keeps voltage constant regardless of load and speed; often integrated with the brush holder.
  • Also embeds chips for various vehicle charging-related functions.
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