LINEAR MAGNETIC POSITION SENSOR CIRCUIT

Abstract: a linear magnetic position sensor circuit includes at least one first sensor arranged to generate a first sensing signal indicative of a first magnetic field gradient of a first magnetic field component oriented in a first direction; a second sensor arranged to generate a second sensing signal indicative of a second magnetic field gradient of a second magnetic field component oriented in a second direction different from the first direction; a processing circuit arranged to compute a gradient magnitude value. the processing circuit is arranged to output a position signal based on a ratio of the first and the second sensing signal if the magnitude value is higher than the first predetermined value and to output a position signal based on a predetermined stored value and/or based on a function of the magnitude value if the magnitude value is lower than the first predetermined value.

Inventor(s): Zsombor LAZAR, Jean-Claude DEPOORTER

CPC Classification: G01D5/145 (MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR)

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