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Title: Log amplifier with pole-zero compensation

Abstract

A logarithmic amplifier circuit provides pole-zero compensation for improved stability and response time over 6-8 decades of input signal frequency. The amplifer circuit includes a first operational amplifier with a first feedback loop which includes a second, inverting operational amplifier in a second feedstock loop. The compensated output signal is provided by the second operational amplifier with the log elements, i.e., resistors, and the compensating capacitors in each of the feedback loops having equal values so that each break point is offset by a compensating break point or zero.

Inventors:
Issue Date:
Research Org.:
Argonne National Lab., IL (USA)
OSTI Identifier:
5271248
Application Number:
ON: DE85017796
Assignee:
Dept. of Energy ERA-10-049398; EDB-85-157628
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; AMPLIFIERS; DESIGN; CAPACITORS; ELECTRONIC CIRCUITS; RESISTORS; ELECTRICAL EQUIPMENT; ELECTRONIC EQUIPMENT; EQUIPMENT; 420800* - Engineering- Electronic Circuits & Devices- (-1989)

Citation Formats

Brookshier, W. Log amplifier with pole-zero compensation. United States: N. p., 1985. Web.
Brookshier, W. Log amplifier with pole-zero compensation. United States.
Brookshier, W. Fri . "Log amplifier with pole-zero compensation". United States.
@article{osti_5271248,
title = {Log amplifier with pole-zero compensation},
author = {Brookshier, W.},
abstractNote = {A logarithmic amplifier circuit provides pole-zero compensation for improved stability and response time over 6-8 decades of input signal frequency. The amplifer circuit includes a first operational amplifier with a first feedback loop which includes a second, inverting operational amplifier in a second feedstock loop. The compensated output signal is provided by the second operational amplifier with the log elements, i.e., resistors, and the compensating capacitors in each of the feedback loops having equal values so that each break point is offset by a compensating break point or zero.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {2}
}