DocumentCode :
1393457
Title :
Technologies for Ultradynamic Voltage Scaling
Author :
Chandrakasan, Anantha P. ; Daly, Denis C. ; Finchelstein, Daniel Frederic ; Kwong, Joyce ; Ramadass, Yogesh Kumar ; Sinangil, Mahmut Ersin ; Sze, Vivienne ; Verma, Naveen
Author_Institution :
Massachusetts Inst. of Technol., Cambridge, MA, USA
Volume :
98
Issue :
2
fYear :
2010
Firstpage :
191
Lastpage :
214
Abstract :
Energy efficiency of electronic circuits is a critical concern in a wide range of applications from mobile multi-media to biomedical monitoring. An added challenge is that many of these applications have dynamic workloads. To reduce the energy consumption under these variable computation requirements, the underlying circuits must function efficiently over a wide range of supply voltages. This paper presents voltage-scalable circuits such as logic cells, SRAMs, ADCs, and dc-dc converters. Using these circuits as building blocks, two different applications are highlighted. First, we describe an H.264/AVC video decoder that efficiently scales between QCIF and 1080p resolutions, using a supply voltage varying from 0.5 V to 0.85 V. Second, we describe a 0.3 V 16-bit micro-controller with on-chip SRAM, where the supply voltage is generated efficiently by an integrated dc-dc converter.
Keywords :
DC-DC power convertors; analogue-digital conversion; power aware computing; random-access storage; video coding; ADC; H.264-AVC video decoder; SRAM; biomedical monitoring; dc-dc converters; electronic circuits; energy consumption reduction; energy efficiency; logic cells; mobile multimedia; ultradynamic voltage scaling; voltage 0.5 V to 0.85 V; voltage-scalable circuits; Automatic voltage control; Biomedical computing; Biomedical monitoring; DC-DC power converters; Decoding; Dynamic voltage scaling; Electronic circuits; Energy consumption; Energy efficiency; Logic circuits; Integrated circuits; low power; ultradynamic voltage scaling;
fLanguage :
English
Journal_Title :
Proceedings of the IEEE
Publisher :
ieee
ISSN :
0018-9219
Type :
jour
DOI :
10.1109/JPROC.2009.2033621
Filename :
5395770
Link To Document :
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