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Using a Voltage Domain Programmable Technique for Low-Power Management Cell-Based Design

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Author(s): Ching-Hwa Cheng

Journal: Journal of Low Power Electronics and Applications
ISSN 2079-9268

Volume: 1;
Issue: 2;
Start page: 303;
Date: 2011;
Original page

Keywords: power management | voltage domain programmable | multiple-voltage | low-voltage

ABSTRACT
The Multi-voltage technique is an effective way to reduce power consumption. In the proposed cell-based voltage domain programmable (VDP) technique, the high and low voltages applied to logic gates are programmable. The flexible voltage domain reassignment allows the chip performance and power consumption to be dynamically adjusted. In the proposed technique, the power switches possess the feature of flexible programming after chip manufacturing. This VDP method does not use an external voltage regulator to regulate the supply voltage level from outside of the chip but can be easily integrated within the design. This novel technique is proven by use of a video decoder test chip, which shows 55% and 61% power reductions compared to conventional single-Vdd and low-voltage designs, respectively. This power-aware performance adjusting mechanism shows great power reduction with a good power-performance management mechanism.
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