Detector for detecting the polarity of an alternating signal

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United States of America

PATENT NO 12181499
APP PUB NO 20230314486A1
SERIAL NO

18042122

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Abstract

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A device for detecting the polarity of a current or voltage, the detection device including a circuit portion with a detection node configured to produce at the detection node a measurement voltage which is an image of a fraction of the detected current or voltage, and a detection circuit with transistor(s), coupled to the detection node, and provided with amplifier(s), with a comparator transistor having a source gate voltage which depends on the measurement voltage. The comparator transistor further includes a source set at a first fixed potential and a source-gate voltage which depends on the measurement voltage or a gate set at a second fixed potential and a source-gate voltage which depends on the measurement voltage, the detection circuit being configured to compare the measurement potential with a threshold and to output a binary detection signal indicating the polarity of the detected current or voltage.

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Patent Owner(s)

Patent OwnerAddress
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESFRANCE PARIS PARIS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bergogne, Dominique Grenoble, FR 17 11
Rothan, Frédéric Grenoble, FR 2 0

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