Patent ID: 8378738

Claim:
A method comprising: supplying a voltage from a power supply to an integrated circuit chip, wherein the integrated circuit comprises a delay line having a plurality of delay stages, and wherein, for a fixed time period, a number of the plurality of delay stages corresponding to the fixed time period is variable across different process, voltage, and temperature (PVT) corners; determining a current value of the voltage being supplied from the power supply to the integrated circuit chip; based on the current value of the voltage being supplied from the power supply to the integrated circuit chip, determining, for a target delay, a number of the plurality of delay stages in the delay line that correspond to the target delay; determining, based on the number of the plurality of delay stages in the delay line that correspond to the target delay, whether the current value of the voltage being supplied from the power supply to the integrated circuit chip should be adjusted; and adjusting the current value of the voltage being supplied from the power supply to the integrated circuit chip when it is determined that the current value of the voltage being supplied from the power supply to the integrated circuit chip power supply voltage should be adjusted.