CXO

Nikola Tesla's patents for aircraft, ships, railways, autos, and more

Method of Obtaining Direct from Alternating Currents

In the present day, we can convert AC power to DC power by going to the nearest store and picking up a universal adapter; in fact, most of the smaller devices we use -- from cell phones to laptops -- come with AC to DC converters. In Tesla's day, however, AC power was cheap to produce, but DC power was needed for most applications. With his Method of Obtaining Direct from Alternating Currents, Tesla proposed an efficient way of converting that power.

Image courtesy of Tesla Universe

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