发明名称 |
MICROPROCESSOR-ASSISTED AUTO-CALIBRATION OF VOLTAGE REGULATORS |
摘要 |
Dynamic runtime calibration of a processor with respect to a specific voltage regulator that powers the processor or a memory subsystem coupled to the processor can reduce or eliminate the need for guardbands in power management computations. The processor receives a current measurement from the voltage regulator and computes a calibration factor based on the measured value and a stored expected value. The calibration factor can be used in making power management decisions instead of adding the guardband to power readings. A manufacturer or distributor of the processor can compute the stored values with a controlled voltage supply that has a higher precision than typical commercial power supplies used in computing systems. The computed, stored values indicate the expected value, which can be used to determine a calibration factor relative to a voltage regulator of an active system. |
申请公布号 |
US2013339777(A1) |
申请公布日期 |
2013.12.19 |
申请号 |
US201113994065 |
申请日期 |
2011.12.30 |
申请人 |
VARMA ANKUSH;SHRALL JEREMY J.;SISTLA KRISHNAKANTH VENKATA;ANANTHAKRISHNAN AVINASH N.;GARG VIVEK;POIRIER CHRISTOPHER A.;ROWLAND MARTIN T.;STANFORD EDWARD R. |
发明人 |
VARMA ANKUSH;SHRALL JEREMY J.;SISTLA KRISHNAKANTH VENKATA;ANANTHAKRISHNAN AVINASH N.;GARG VIVEK;POIRIER CHRISTOPHER A.;ROWLAND MARTIN T.;STANFORD EDWARD R. |
分类号 |
G06F1/26 |
主分类号 |
G06F1/26 |
代理机构 |
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代理人 |
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地址 |
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