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US 8,898,616 B2Granted
Software controlled transistor body bias
OwnerDavid R. Ditzel, James B. Burrinventors
Life of this patent
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Abstract
Software controlled transistor body bias. A target frequency is accessed. Using software, transistor body-biasing values are determined for the target frequency in order to enhance a characteristic of a circuit. The bodies of the transistors are biased based on the body-biasing values, wherein the characteristic is enhanced.
Claims20
A computer-implemented method comprising:
- operating transistors in a circuit at a threshold voltage;
- and
- comparing a predicted energy cost of changing the threshold voltage of said transistors in said circuit from a first threshold voltage to a second threshold voltage to a predicted energy benefit of operating said circuit at said second threshold voltage relative to operating said circuit at said first threshold voltage.
A computer system comprising:
- circuitry configured to compare a predicted energy cost of changing a threshold voltage of transistors in a circuit from a first threshold voltage to a second threshold voltage to a predicted energy benefit of operating said circuit at said second threshold voltage relative to operating said circuit at said first threshold voltage.
An article of manufacture including a computer readable storage medium having stored therein instructions that, responsive to execution by a computing device, cause the computing device to perform operations comprising:
- operating transistors in a circuit at a threshold voltage;
- and
- comparing a predicted energy cost of changing the threshold voltage of said transistors in said circuit from a first threshold voltage to a second threshold voltage to a predicted energy benefit of operating said circuit at said second threshold voltage relative to operating said circuit at said first threshold voltage.
Dependencies are inferred from the claim text.