Design of a low power VLSI systems powered by ambient mechanical vibration
Name
43412444-MIT.pdf
Description
Full printable version
Size
15.15 MB
Format
Adobe PDF
Checksum (MD5)
eefe2c1400c862f7400385e04a02d29b
Author(s)
Amirtharajah, Rajeevan
Advisor(s)
Anantha Chandrakasan.
Alternative Title
Design of a low power very large scale integration systems powered by ambient mechanical vibration
Date Issued
1999
Publisher
Massachusetts Institute of Technology
Abstract
Low power design trends raise the possibility of using ambient energy to power future digital systems. This thesis explores the design of such systems for collecting and processing data from sensors. The low throughput requirements of this type of computation allows aggressive scaling of supply voltages and enables very low power solutions. We discuss implementations of a generator for transducing mechanical vibration to electrical energy using macroscopic and MEMS technology. A DC/DC converter chip has been designed and tested to demonstrate the feasibility of operating a digital system from power generated by vibrations in its environment. A moving coil electromagnetic transducer was used as a power generator. A single generator excitation produced 23 ms of valid DSP operation at a 500 kHz clock frequency, corresponding to 11,700 cycles. An ultra low power DSP chip has also been designed that implements a power scalable detection and classification algorithm for a biomedical sensor. This chip demonstrates appropriate architectural and circuit techniques for low to medium throughput sensor applications. It consumes 550 n W at 1.5 V with a 1 kHz clock frequency.
Description
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
Includes bibliographical references (p. 161-166).
Subjects
Electrical Engineering and Computer Science
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
Persistent DSpace Link
