Glossary Definition for Inrush-Current

Glossary Term: Inrush-Current 

Definition

A momentary input current surge, measured during the initial turn-on of the power supply. This current reduces to a lower steady-state current once the input capacitors charge. Hotswap controllers or other forms of protection are often used to limit inrush current, because uncontrolled inrush can damage components, lower the available supply voltage to other circuits, and cause system errors.
Synonyms
  • In-Rush Current
  • Inrush
  • In-Rush
See Also
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