Reference articles on history, science, culture and more
Surprise meSurprise meSubscribe
Encyclopedia

Constant current

Direct current that does not change intensity with time

Wikipedia contributorsAdapted for Fathomly · View authors
1 min read
Source updated June 19, 2024

A constant current (steady current, time-independent current, stationary current) is a type of direct current (DC) that does not change its intensity with time. The syntagma stationary current is a contradiction in terms, however in use.

Watch videos about Constant currentExplainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article “Constant current”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

Fathomly is not affiliated with or endorsed by the Wikimedia Foundation. Spotted a problem? Tell us.

Continue exploring

Related topics

Current source

A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it. A current source is the dual of a voltage source.

LED circuit

In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode. The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED. The voltage drop across a lit LED is approximately constant over a wide range of operating current; therefore, a small increase in applied voltage greatly increases the current.