Patent ID: 6697952
Filing Date: 2004-02-24
Classification: G06F

Abstract:
A system for biasing supply voltage requirements that are input to a voltage regulator, the system comprising:a processor voltage signal indicative of supply voltage required by one or more components in a computer system during operation; a margin voltage signal indicative of a compensated supply voltage for the computer system; margin voltage control logic having a selection control signal for selecting between the processor voltage signal and the margin voltage signal, wherein the margin voltage control logic determines a difference between the required supply voltage and the voltage regulator output voltage, the difference being added to or subtracted from the required supply voltage to produce the margin voltage signal such that the voltage regulator output voltage will be substantially equal to the required supply voltage; and a multiplexer operable to receive the processor voltage signal, the margin voltage signal, and the selection control signal, the multiplexer being further operable to output a voltage identification signal to the voltage regulator based upon the processor voltage signal, or the margin voltage signal, whereby the selection control signal determines the multiplexer signal selection.