Noise analyses of input stages of typical transformer-coupled preamplifiers are presented. Conditions are derived for which the transformer improves the signal-to-noise ratio of the circuits. Examples are presented which are typical for microphone preamplifiers.

Author: Leach, Jr., W. Marshall
Affiliation: School of Electrical Engineering, Georgia Institute of Technology, Atlanta, GA
JAES Volume 40 Issue 1/2 pp. 3-11; February 1992
Publication Date: February 1, 1992 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=7063

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