Green Electronics: High Efficiency On-chip Power Management Solutions for Portable and Battery-Powered Applications
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2010
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=osu1291144939 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-osu12911449392021-08-03T06:01:01Z Green Electronics: High Efficiency On-chip Power Management Solutions for Portable and Battery-Powered Applications Hu, Anqiao Electrical Engineering Energy Engineering Environmental Engineering CMOS power management green electronics VLSI integrated circuits low drop-out DC-DC converter sleep-mode <p>With increasing recognition of green house gas emission as a major contributor to global warming, and that fossil fuels are finite resources that would eventually dwindle, green electronics, a commitment toward designing more energy-efficient products, is not only an environmental, social, and ethical imperative for the integrated circuit research community, but also a shrewd business practice for industry. </p><p>This dissertation discusses various mixed-signal VLSI techniques at system and circuit (transistor) levels that would help build energy-efficient green electronics, which are instrumental for current consumer applications and future sustainable renewable-energy economy. At system level, a truly effective power management scheme should be a holistic solution involving system software, VLSI architecture, and silicon IPs. Sleep-mode efficiency is pointed out as the bottleneck for low power battery-powered applications, and around 30% battery runtime extension is estimated based on published experimental data if sleep-mode efficient power management IPs are available and used in place.</p><p>At circuit level, a number of linear regulator and switch-mode power converter designs are presented. A sleep-mode ready, current-area efficient capacitor-free low drop-out regulator with input current-differencing is designed, fabricated, and measured in 0.5 um CMOS process. A long-sleep model that improves the light-load efficiency of DC-DC Buck converter under mW to uW load during system sleep-mode is also proposed. The common theme among the designs is high efficiency and full on-chip, which are uniquely required by portable and battery-powered applications; The key innovation is the enhanced sleep-mode efficiency, which is driven by, and effectively supports the holistic power management solution.</p> 2010-12-17 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1291144939 http://rave.ohiolink.edu/etdc/view?acc_num=osu1291144939 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
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English |
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NDLTD |
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Electrical Engineering Energy Engineering Environmental Engineering CMOS power management green electronics VLSI integrated circuits low drop-out DC-DC converter sleep-mode |
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Electrical Engineering Energy Engineering Environmental Engineering CMOS power management green electronics VLSI integrated circuits low drop-out DC-DC converter sleep-mode Hu, Anqiao Green Electronics: High Efficiency On-chip Power Management Solutions for Portable and Battery-Powered Applications |
| author |
Hu, Anqiao |
| author_facet |
Hu, Anqiao |
| author_sort |
Hu, Anqiao |
| title |
Green Electronics: High Efficiency On-chip Power Management Solutions for Portable and Battery-Powered Applications |
| title_short |
Green Electronics: High Efficiency On-chip Power Management Solutions for Portable and Battery-Powered Applications |
| title_full |
Green Electronics: High Efficiency On-chip Power Management Solutions for Portable and Battery-Powered Applications |
| title_fullStr |
Green Electronics: High Efficiency On-chip Power Management Solutions for Portable and Battery-Powered Applications |
| title_full_unstemmed |
Green Electronics: High Efficiency On-chip Power Management Solutions for Portable and Battery-Powered Applications |
| title_sort |
green electronics: high efficiency on-chip power management solutions for portable and battery-powered applications |
| publisher |
The Ohio State University / OhioLINK |
| publishDate |
2010 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=osu1291144939 |
| work_keys_str_mv |
AT huanqiao greenelectronicshighefficiencyonchippowermanagementsolutionsforportableandbatterypoweredapplications |
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1719429493479702528 |