METHOD AND APPARATUS FOR AMPLIFYING INPUT SIGNAL HAVING DC COMPONENT AND AC COMPONENT

PROBLEM TO BE SOLVED: To allow reduction in the sensitivity of an amplifier to an offset voltage without the need for a capacitor and a capacitive coupling. SOLUTION: The method includes steps: comparing the input signal with a reference value, generating an intermediate signal by subtracting from t...

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Bibliographic Details
Main Authors DESBONNETS ERIC BERNARD MARIE FRANCOIS, LEBAILLY GUILLAUME
Format Patent
LanguageEnglish
Published 14.02.2003
Edition7
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
ELECTRICITY
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Summary:PROBLEM TO BE SOLVED: To allow reduction in the sensitivity of an amplifier to an offset voltage without the need for a capacitor and a capacitive coupling. SOLUTION: The method includes steps: comparing the input signal with a reference value, generating an intermediate signal by subtracting from the input signal a so-called correction signal resulting from said comparison, evaluating a mean value of the rectified intermediate signal, and multiplying the input signal by said mean value.
Bibliography:Application Number: JP20020191629