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.
Patent No.:
Date of Patent:
Oct. 28, 2025
Filed:
Dec. 11, 2023
Applicant:
Allegro Microsystems, Llc, Manchester, NH (US);
Inventors:
Roman Procházka, Struharov, CZ;
Juan Manuel Cesaretti, Buenos Aires, AR;
Assignee:
Allegro MicroSystems, LLC, Manchester, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 15/20 (2006.01);
U.S. Cl.
CPC ...
G01R 15/202 (2013.01);
Abstract
Methods and apparatus for a voltage driven Hall plate current sensor integrated circuit (IC) package that includes a die including a Hall plate with a lateral epi resistor. A gm amplifier receives an output voltage from the Hall plate and a front end amplifier receives an output of the gm amplifier. A compensation circuit compensates for stress on the die that affects a resistance of the Hall plate and includes a lateral epi resistor coupled to a constant current for compensating for piezoresistive stress in the Hall plate.