The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 26, 2023

Filed:

Sep. 08, 2022
Applicant:

Allegro Microsystems, Llc, Manchester, NH (US);

Inventors:

Ezequiel Rubinsztain, Buenos Aires, AR;

Pablo Javier Bolsinger, Buenos Aires, AR;

Assignee:

Allegro MicroSystems, LLC, Manchester, NH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/07 (2006.01); H03F 3/45 (2006.01); G01R 33/00 (2006.01);
U.S. Cl.
CPC ...
G01R 33/07 (2013.01); G01R 33/0041 (2013.01); H03F 3/45977 (2013.01);
Abstract

A multichannel magnetic field sensor including a plurality of magnetic field sensing elements includes a multiplexed signal path. A front end amplifier is coupled to receive a first magnetic field signal during a first time interval and a second magnetic field signal during a second time interval. A first low pass filter processes the amplified signal during the first time interval and a second low pass filter processes the amplified signal during the second time interval. A sinc filter is coupled to receive the first low pass filtered signal during the first time interval and the second low pass filtered signal during the second time interval. A Schmitt trigger circuit includes a comparator to process the sinc filter output signal and to generate a first comparator output signal during the first time interval and a second comparator output signal is provided during the second time interval.


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