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Voltage regulator training

  • US 9,910,484 B2
  • Filed: 11/26/2013
  • Issued: 03/06/2018
  • Est. Priority Date: 11/26/2013
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • an analog front end (AFE) on a processor die;

    an on-die voltage regulator coupled with the AFE, the on-die voltage regulator to supply a first voltage to the AFE, wherein the on-die voltage regulator is on the processor die; and

    an external voltage regulator external to the processor die coupled with the AFE to supply a second voltage to the AFE,wherein the on-die voltage regulator is to dynamically alter the first voltage to reduce power consumption of the AFE based at least in part on a result of a training loop performed on system power up or system reset, wherein the training loop is to include detection of whether there is a first margin failure of the AFE based at least in part on an adjustment of the first voltage and the training loop is also to include detection of a second margin failure based at least in part on an adjustment of the second voltage, and wherein the external voltage regulator is to dynamically alter the second voltage to reduce power consumption of the AFE based at least in part on the training loop performed on system power up or system reset.

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