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. 14, 2025
Filed:
May. 16, 2023
Allegro Microsystems, Llc, Manchester, NH (US);
Pablo Aguirre, Montevideo, UY;
Hernán D. Romero, Buenos Aires, AR;
Allegro MicroSystems, LLC, Manchester, NH (US);
Abstract
In one example, an inductive sensor interface circuit includes: a coil driver configured to excite one or more transmit coils to generate a magnetic field at a target; a plurality of input channels for receiving input signals via respective ones of a plurality of receive coils, the input signals responsive to reflections of the magnetic field off the target and encoding information about a position of the target; a position detection processor to decode the information about the position of the target from the input signals; and an amplitude detection processor configured to calculate an amplitude of the input signals and to control a strength of the magnetic field generated by the coil driver based on a difference between the calculated amplitude to a predetermined desired input amplitude.