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Separation and Extraction of Short-Circuit Power Consumption in Digital CMOS VLSI Circuits
Linköping University, Department of Electrical Engineering, Electronic Devices. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Electronic Devices. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Electronic Devices. Linköping University, The Institute of Technology.
1998 (English)In: ISLPED '98 Proceedings of the 1998 international symposium on Low power electronics and design, 1998, 245-249 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we present a new technique which indirectly separates and extracts the total short-circuit power consumption of digital CMOS circuits. We avoid a direct encounter with the complex behavior of the short-circuit currents. Instead, we separate the dynamic power consumption from the total power and extract the total short-circuit power. The technique is based on two facts: first, the short-circuit power consumption disappears at a Vdd close to VT and, secondly, the total capacitance depends on supply voltage in a sufficiently weak way in standard CMOS circuits. Hence, the total effective capacitance can be estimated at a low Vdd. To avoid reducing Vdd below the specified forbidden level, a polynomial is used to estimate the power versus supply voltage down to VT based on a small voltage sweep over the allowed supply voltage levels. The result shows good accuracy for the short-circuit current ranges of interest.

Place, publisher, year, edition, pages
1998. 245-249 p.
Keyword [en]
Short-circuit current, Power consumption, Power estimation.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-54104DOI: 10.1145/280756.280919OAI: oai:DiVA.org:liu-54104DiVA: diva2:299560
Conference
International Symposium on Low-Power Electronics and Design, 10-12 August 1998, Monterey, California, USA
Available from: 2010-02-23 Created: 2010-02-23 Last updated: 2013-01-15

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Alvandpour, AtilaSvensson, Christer

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