Predictive comparators with adaptive control
Name
53711451-MIT.pdf
Description
Full printable version
Size
6.01 MB
Format
Adobe PDF
Checksum (MD5)
179041799e19d343789412500e8cc34b
Author(s)
MeVay, Alex C. H. (Alex Craige Haviland), 1979-
Advisor(s)
Rahul Sarpeshkar.
Date Issued
2002
Publisher
Massachusetts Institute of Technology
Abstract
A linear predictor and adaptive control loop are added to a conventional comparator to greatly reduce the delay. A linear predictor feeds an estimated future signal to the comparator to compensate for the comparator's internal delay. On a cycle-by-cycle basis, an adaptive controller adjusts the comparator's bias current to null the error. Emphasis is placed on low power consumption, including the development of a linear predictor with no static power consumption. Improvements of two orders of magnitude in power-delay product are demonstrated. The adaptive comparator is ideally suited for applications such as synchronous rectification but will also find broad applicability anywhere an asynchronous comparator is required, such as sensor interfaces, oscilloscope triggers, and some types of analog-digital converters.
Description
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
Includes bibliographical references (p. 72).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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