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Voltage optimization circuit and managing voltage margins of an integrated circuit

  • US 9,389,622 B2
  • Filed: 10/06/2015
  • Issued: 07/12/2016
  • Est. Priority Date: 01/08/2014
  • Status: Active Grant
First Claim
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1. A voltage margin controller located in a voltage domain and comprising:

  • monitoring branches including circuit function indicators configured to indicate whether circuitry in said voltage domain could operate at corresponding candidate reduced voltage levels; and

    a voltage margin adjuster coupled to said monitoring branches and configured to develop a voltage margin adjustment for a voltage regulator of said voltage domain based upon an operating number of said circuit function indicators, wherein said operating number is a number of consecutive passing function indicators directly below an operating voltage provided by said voltage regulator for said voltage domain.

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