Detecting power supply noise events and initiating corrective action
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United States of America Patent
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Aug 22, 2023
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N/A
app pub date -
Nov 17, 2021
filing date -
Sep 16, 2016
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Abstract
Techniques are disclosed relating to detecting supply voltage events and performing corrective actions. In some embodiments, an apparatus includes sensor circuitry and control circuitry. In some embodiments, the sensor circuitry is configured to monitor supply voltage from a power supply and detect a load release event that includes an increase in the supply voltage that meets one or more pre-determined threshold parameters. In some embodiments, the control circuitry is configured to increase clock cycle time for operations performed by circuitry powered by the supply voltage during a time interval, wherein the time interval corresponds to ringing of the supply voltage that reduces the supply voltage and results from the load release event. In some embodiments, the disclosed techniques may reduce transients in supply voltage (which may avoid equipment damage and computing errors) and may allow for reduced voltage margins (which may reduce overall power consumption).
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