公开(公告)号：US20240168104A1

公开(公告)日：2024-05-23

申请号：US18056821

申请日：2022-11-18

Applicant: Allegro MicroSystems, LLC

Inventor： Arun Prasad Javvaji ,  Craig S. Petrie

IPC: G01R33/00 ,  G01R33/06

CPC classification number: G01R33/0017 ,  G01R33/06

Abstract: A method for use in a magnetic field sensor, including: in each of a plurality of calibration periods, generating a reference magnetic field based on a different one of a plurality of drive codes; storing, in a memory, a plurality of values of a reference magnetic field signal that is generated in response to the reference magnetic field, each of the values of the reference magnetic field signal being generated by sampling the reference magnetic field signal in a different one of the plurality of calibration periods; calculating a calibration gain coefficient based on the plurality of values of the reference magnetic field signal; and storing the calibration gain coefficient in the memory and using the calibration gain coefficient to adjust an output of the magnetic field sensor.

公开(公告)号：US11703551B2

公开(公告)日：2023-07-18

申请号：US17729149

申请日：2022-04-26

Applicant: TDK CORPORATION

Inventor： Masaki Nagata ,  Kazuya Watanabe ,  Keisuke Uchida ,  Kohei Honma ,  Hiraku Hirabayashi

IPC: G01R33/06 ,  G01R33/00 ,  G01R33/09

CPC classification number: G01R33/0005 ,  G01R33/06 ,  G01R33/098

Abstract: A magnetic field detection device, containing a) a first soft magnetic body containing a1) a first plate including a first surface having a first outer edge; and a2) a first protrusion disposed directly or indirectly on the first surface of the first plate at a first arrangement position set back from the first outer edge, the first protrusion including a first tip on an opposite side to the first surface; and b) a magnetic detector provided in a vicinity of the first tip, wherein the magnetic detector has a magnetic sensing direction along the first surface, and the first protrusion is capable of bending a direction of a first magnetic flux, which comes into the first plate, along the first surface.

公开(公告)号：US11677032B2

公开(公告)日：2023-06-13

申请号：US17806758

申请日：2022-06-14

Applicant: Allegro MicroSystems, LLC

Inventor： Ravi Vig ,  William P. Taylor ,  Paul A. David ,  P. Karl Scheller ,  Andreas P. Friedrich

IPC: H01L29/82 ,  G01R33/06 ,  G01R33/00 ,  G01D5/14 ,  G01R15/20

CPC classification number: H01L29/82 ,  G01D5/147 ,  G01R33/0047 ,  G01R33/0052 ,  G01R33/06 ,  G01R15/207 ,  H01L2224/45147 ,  H01L2224/48247 ,  H01L2924/00011 ,  H01L2224/45147 ,  H01L2924/00 ,  H01L2924/00011 ,  H01L2924/01033

Abstract: A sensor includes a lead frame having a first surface, a second opposing surface, and a plurality of leads and a semiconductor die having a first surface attached to the first surface of the lead frame and a second, opposing surface. The sensor further includes a non-conductive mold material enclosing the die and at least a portion of the lead frame, a conductive coil secured to the non-conductive mold material, a mold material secured to the non-conductive mold material and enclosing the conductive coil, wherein the mold material has a central region and an element disposed in the central region of the mold material.

公开(公告)号：US20180306846A1

公开(公告)日：2018-10-25

申请号：US15527296

申请日：2015-11-18

Applicant: The Regents of the University of California

Inventor： Steven M. Lanzisera ,  Douglas R. Black

IPC: G01R19/25 ,  G01R33/02 ,  G01R19/165

CPC classification number: G01R19/2513 ,  G01R19/165 ,  G01R19/1659 ,  G01R33/02 ,  G01R33/06

Abstract: The present disclosure provides for a device which is a non-contact metering of a current, a voltage, power, and/or energy.

公开(公告)号：US20180269373A1

公开(公告)日：2018-09-20

申请号：US15542616

申请日：2016-01-11

Applicant: HELMUT WEIDLICH

Inventor： HELMUT WEIDLICH

IPC: H01L39/14 ,  G01R33/06 ,  H01L29/06 ,  H01L29/205 ,  H01L29/82 ,  H01L43/10 ,  H02N11/00 ,  G21K1/093

CPC classification number: H01L39/143 ,  G01R33/06 ,  G21K1/093 ,  H01L29/0657 ,  H01L29/205 ,  H01L29/82 ,  H01L43/00 ,  H01L43/10 ,  H02N11/002

Abstract: A device for guiding charge carriers and uses of the device are proposed, wherein the charge carriers are guided by means of a magnetic field along a curved or angled main path in a two-dimensional electron gas or in a thin superconducting layer, so that a different presence density is produced at electrical connections.

公开(公告)号：US20180202835A1

公开(公告)日：2018-07-19

申请号：US15742607

申请日：2016-07-13

Applicant: ELECTRICFIL AUTOMOTIVE

Inventor： Rainer MÖLLER ,  Mathieu LE NY

IPC: G01D5/14 ,  G01D5/245 ,  G01B7/00 ,  G01R33/06

CPC classification number: G01D5/145 ,  G01B7/003 ,  G01D5/2452 ,  G01R33/06

Abstract: The invention provides a measurement sensor for determining the position of a moving body, the sensor comprising a series of at least four detector probes for detecting a physical magnitude coming from a target comprising at least one track for creating a physical magnitude that is measurable by the detector probes and that varies along the path of the target with a function that is continuous and that includes a first harmonic and a second harmonic, the probes being connected to a processor unit for processing signals delivered by the probes, the processor unit including a reconstruction system for performing a linear combination of the signals and for obtaining firstly two quadrature signals including solely the first harmonic, and secondly two quadrature signals including solely the second harmonic, the unit also including a calculation system for processing the quadrature signals in order to determine the position of the moving body.

公开(公告)号：US20180197396A1

公开(公告)日：2018-07-12

申请号：US15753286

申请日：2016-06-09

Applicant: Pedro GABAY VILLAFAÑA ,  Jose Luis ROJAS CALDERON ,  Agustin Gabriel ROJAS CALDERON

Inventor： Pedro GABAY VILLAFAÑA ,  Jose Luis ROJAS CALDERON ,  Agustin Gabriel ROJAS CALDERON

IPC: G08B21/18 ,  G01F23/38

CPC classification number: G08B21/182 ,  G01F23/38 ,  G01R33/00 ,  G01R33/02 ,  G01R33/06

Abstract: Some embodiments are directed to a novel electronic device which detects the load level of gas in liquid state contained in tanks, through the magnetic field generated by the magnets used in floater mechanical systems which are incorporated into the containers, sending information by a remote interface, which communicates via the internet, or through a local network, to any computer or smart device. The versatility of the disclosed device, allows it to be adapted into any type of tank which uses the floating mechanical system with a magnet, being the ideal solution for monitoring gas consumption in places where access to the gas container is difficult or risky.

公开(公告)号：US09995797B2

公开(公告)日：2018-06-12

申请号：US15442397

申请日：2017-02-24

Applicant: Senis AG

Inventor： Marjan Blagojevic ,  Sasa Dimitrijevic ,  Radivoje Popovic ,  Dragana Popovic Renella ,  Sasa Spasic

IPC: G01R33/00 ,  G01R33/09 ,  G01R33/07

CPC classification number: G01R33/0005 ,  G01D5/145 ,  G01R33/06 ,  G01R33/072 ,  G01R33/091

Abstract: The invention concerns an angle sensor and a method of measuring an angle of a magnetic field. The angle sensor is configured to measure a direction of a magnetic field in a plane, comprising a first magnetic field sensor having a first sensitivity direction and delivering a first voltage, a second magnetic field sensor having a second sensitivity direction and delivering a second voltage, a first current source supplying a first biasing current to the first magnetic field sensor, a second current source supplying a second biasing current to the second magnetic field sensor (2), and electronic circuitry configured to adjust the first biasing current and the second biasing current in such a manner that a sum of the first voltage and the second voltage equals 0.

公开(公告)号：US20180156874A1

公开(公告)日：2018-06-07

申请号：US15686592

申请日：2017-08-25

Applicant: TDK CORPORATION

Inventor： Masaki NAGATA ,  Kazuya WATANABE ,  Keisuke UCHIDA ,  Kohei HONMA ,  Hiraku HIRABAYASHI

IPC: G01R33/00 ,  G01R33/06

CPC classification number: G01R33/0005 ,  G01R33/06 ,  G01R33/098

Abstract: Provided is a magnetic field detection device that includes a first soft magnetic body and a magnetic detector. The first soft magnetic body includes a first plate and a first protrusion. The first plate includes a first surface including a first outer edge. The first protrusion is provided at a first arrangement position in the first surface and includes a first tip on opposite side to the first surface. The first arrangement position is set back from the first outer edge. The magnetic detector is provided in the vicinity of the first tip.

公开(公告)号：US09859489B2

公开(公告)日：2018-01-02

申请号：US14707319

申请日：2015-05-08

Applicant: Allegro MicroSystems, LLC

Inventor： Michael C. Doogue ,  William P. Taylor ,  Vijay Mangtani

IPC: H01L29/82 ,  H01L43/08 ,  H01L43/04 ,  B82Y25/00 ,  G01R15/20 ,  G01R33/02 ,  G01R33/07 ,  G01R33/09 ,  H01L25/16 ,  G01R33/06 ,  H01L43/06 ,  G01R15/08

CPC classification number: H01L43/02 ,  B82Y25/00 ,  G01R15/08 ,  G01R15/207 ,  G01R33/02 ,  G01R33/06 ,  G01R33/07 ,  G01R33/09 ,  G01R33/093 ,  H01L23/49541 ,  H01L25/162 ,  H01L43/04 ,  H01L43/065 ,  H01L43/08 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2924/3025 ,  H01L2924/00014 ,  H01L2924/00

Abstract: An integrated circuit can have a first substrate supporting a magnetic field sensing element and a second substrate supporting another magnetic field sensing element. The first and second substrates can be arranged in a variety of configurations. Another integrated circuit can have a first magnetic field sensing element and second different magnetic field sensing element disposed on surfaces thereof.