Method and system for providing self-calibration for...

Details Method and system for providing self-calibration for... Method and system for providing self-calibration for...

2006-04-04

2006-04-04

Lee, Thomas (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

C327S271000, C327S277000

Reexamination Certificate

active

07024568

ABSTRACT:
A method for providing self-calibration for adaptively adjusting a power supply voltage in a digital processing system is provided that includes providing a nominal power supply voltage to the system as a power supply voltage. A regulator clock signal is propagated through a delay line. The delay line comprises a plurality of delay cells and is operable to function based on the nominal power supply voltage. A plurality of pairs of delay cells are sampled until a first and second delay cell are identified based on the first delay cell receiving the regulator clock signal and the second delay cell failing to receive the regulator clock signal at a specified time. A reference voltage is provided to the system as the power supply voltage. The system is operated using the first and second delay cells to determine whether to adjust the power supply voltage for the system.

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patent: 1 223 493 (2002-07-01), None

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