Back مولد (كهرباء) Arabic Динамо Bulgarian ডায়নামো Bengali/Bangla Dinamo Catalan Dynamo Czech Dinamo Esperanto Dinamo (generador eléctrico) Spanish Alalisvoolugeneraator Estonian Dinamo Basque دینام Persian
A dynamo is an electrical generator that creates direct current using a commutator. Dynamos were the first electrical generators capable of delivering power for industry, and the foundation upon which many other later electric-power conversion devices were based, including the electric motor, the alternating-current alternator, and the rotary converter.
Today, the simpler alternator dominates large scale power generation, for efficiency, reliability and cost reasons. A dynamo has the disadvantages of a mechanical commutator. Also, converting alternating to direct current using rectifiers (such as vacuum tubes or more recently via solid state technology) is effective and usually economical.