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Using the current control for dynamic voltage scaling to reduce the power consumption of PC systems

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2 Author(s)
Ying-Wen Bai ; Dept. of Electr. Eng., Fu Jen Catholic Univ., Taipei, Taiwan ; Feng-Hua Chang

In this paper we use the load current of the CPU as decision of the working state of the PC is either a heavy load or a light load. Based on the voltage specification of each device on the PC motherboard, we use the current control for dynamic voltage scaling (IREF-DVS) regulator to provide different voltages for each device. When the PC has a light load we can decrease the operating voltage of each device to the minimum voltage, and with a heavy load this design can increase it to the maximum voltage to improve the performance.

Published in:

System Integration (SII), 2011 IEEE/SICE International Symposium on

Date of Conference:

20-22 Dec. 2011

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