Voltage Ripple

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Term Definition
Voltage Ripple

Voltage ripple is small amounts of voltage fluctuation in a short period of time. Voltage ripple is measured peak-to-peak (waves) and usually usually reported in mV. Voltage ripple varies across rails, and both temperature and load impact voltage ripple.

The ATX12V specification sets maximum voltage ripple tolerances of 120mV for 12v rails, and 50mV for everything else.

corsair-oscope-vripple-1 corsair-oscope-vripple-2

See Also

  • Rails (PSU)
  • Voltage Regulation
  • Power Factor Correction

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Author: Michael Kerns

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