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We have developed a circuit for determining an optimal supply voltage, VOPT, for which energy consumption will be minimized in devices suffering from high-leakage. This VOPT is determined on the basis of a trade-off between power consumption and operation time. Experimental results with a 90-nm CMOS device indicate that the proposed circuit successfully determines VOPT with high accuracy. VOPT operations...
We have developed a circuit for determining an optimal supply voltage, VOPT for which energy consumption in circuit operations will be minimized in devices suffering from high-leakage. This VOPT is determined on the basis of a trade-off between power consumption and delay time. Experimental results with a 90-nm CMOS device indicate that the proposed circuit successfully determines VOPT within 3% of...
This paper describes newly developed delay and power monitoring schemes for minimizing power consumption by means of the dynamic control of supply voltage VDD and threshold voltage VTH in active and standby modes. On the basis of delay monitoring results, either VDD control or VTH control is selected, in order to avoid any oscillation problem between them in the active mode. With respect to power...
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