Dynamic voltage scaling

Details Dynamic voltage scaling Dynamic voltage scaling

2005-03-04

2010-06-15

Chen, Tse (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000, C713S310000, C713S320000, C713S321000, C713S323000, C713S324000, C713S340000, C713S330000

Reexamination Certificate

active

07739531

ABSTRACT:
An apparatus and method for dynamically controlling the maximum frequency of operation of the IC is provided. The invention optimizes power consumption in a device by measuring a current maximum frequency of operation and adjusting IC operating voltage to provide a desired maximum operating frequency. The invention provides an apparatus and method for controlling multiple voltages in an IC to independently adjust maximum operating frequencies for a plurality of separate portions of the IC. The invention may equally be applied to a group of ICs. The invention further provides a method for calibrating an IC. Thus, the apparatus facilitates the operation of an IC at a minimum voltage for a selected maximum frequency, thereby minimizing power consumption overall a wide range of operating frequencies.

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