DC BIAS EVALUATION IN AN AC COUPLED CIRCUIT VIA TRANSIENT GAIN RESPONSE

DC BIAS EVALUATION IN AN AC COUPLED CIRCUIT VIA TRANSIENT GAIN RESPONSE

A method and system are provided for the monitoring of direct current bias, the system including switching an amplifier of known scale factor from low to high; monitoring a step change in bias generated by the gain change; measuring, the response to the bias change via appropriate peak detection log...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SEARS WALTER J, JOHNSON AARON B
Format: Patent
Sprache:eng
Schlagworte:
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
COLORIMETRY
ELECTRICITY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
RADIATION PYROMETRY
TESTING
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Beschreibung
Zusammenfassung:A method and system are provided for the monitoring of direct current bias, the system including switching an amplifier of known scale factor from low to high; monitoring a step change in bias generated by the gain change; measuring, the response to the bias change via appropriate peak detection logic; and determining the amount of bias present at an input based on AC response and the amplifier scale factor.