MAGNETIC FIELD SENSOR MAINTAINING A MINIMAL SEPARATION OF THRESHOLDS, AND CORRESPONDING SENSING METHOD

A magnetic field sensor uses upper and lower thresholds (404a, 404b, 424a, 424b, 444a, 444b, 464a, 464b) for processing the output signal (402, 422, 442, 462) of a magnetic field sensing element. The upper and lower threshold values are predetermined percentages of a peak-to-peak value determined fr...

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Bibliographische Detailangaben
Hauptverfasser:	BURDETTE, ERIC, FERNANDEZ, DEVON, SNYDER, STEVEN, E, CHEN, MICHAEL, HARER, JACOB
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	A magnetic field sensor uses upper and lower thresholds (404a, 404b, 424a, 424b, 444a, 444b, 464a, 464b) for processing the output signal (402, 422, 442, 462) of a magnetic field sensing element. The upper and lower threshold values are predetermined percentages of a peak-to-peak value determined from the magnetic field signal. If the voltage difference between the upper and the lower threshold values is smaller than a predetermined limit value (446), a predetermined voltage difference value is used to maintain a minimum separation distance between the upper and lower thresholds. Un capteur de champ magnétique utilise des seuils supérieur et inférieur. Les seuils supérieur et inférieur sont limités de manière à réduire à un minimum l'écart de niveaux de tension équivalents entre les seuils supérieur et inférieur.