Invention Grant
- Patent Title: Magnetic field sensor and associated method that can establish a measured threshold value and that can store the measured threshold value in a memory device
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Application No.: US14250574Application Date: 2014-04-11
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Publication No.: US09644999B2Publication Date: 2017-05-09
- Inventor: Andrea Foletto , Peter Cisar , Eric Shoemaker
- Applicant: Allegro Microsystems, LLC
- Applicant Address: US MA Worcester
- Assignee: Allegro MicroSystems, LLC
- Current Assignee: Allegro MicroSystems, LLC
- Current Assignee Address: US MA Worcester
- Agency: Daly, Crowley, Mofford & Durkee, LLP
- Main IPC: G01B7/30
- IPC: G01B7/30 ; G01D18/00 ; G01D5/247 ; G01P3/488 ; G01D5/244 ; G01D5/14

Abstract:
A magnetic field sensor includes a comparator coupled to receive a calculated threshold value based upon a temperature signal, a stored value of a temperature coefficient signal, and a stored value of a measure threshold signal, and also coupled to receive a signal representative of a magnetic field signal. The comparator is configured to compare the calculated threshold value with the signal representative of the magnetic field signal to generate an output signal. A corresponding method is associated with the magnetic field sensor.
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