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ALGM Allegro Microsystems

GRANT
Utility
Power module package and packaging techniques
23 Nov 21
A power integrated circuit (IC) includes a lead frame comprising a signal lead, a power lead, and a paddle attached to one or more of the signal lead and the power lead, an electrical component supported by the paddle, and a mold material configured to enclose a portion of the lead frame and expose a surface of the paddle, wherein the power lead has a first portion extending from an edge of the mold material outside of the mold material in a first direction and a second portion enclosed by the mold material and extending from the edge of the mold material inside the mold material in a second direction to the paddle, wherein the second direction is substantially opposite to the first direction.
Shixi Louis Liu, Natasha Healey, Rishikesh Nikam
Filed: 17 Jan 20
GRANT
Utility
Magnetic field sensor and method with reduced distortion measurement in sideshaft applications
16 Nov 21
A magnetic field sensor includes an analog front end having first and second magnetic field sensing elements arranged at approximately 90-degrees with respect to each other, a pre-processor and an arctangent processor.
Pablo Aguirre, Juan Manuel Cesaretti, Jesse Lapomardo
Filed: 18 Oct 19
GRANT
Utility
Reducing voltage non-linearity in a bridge having tunneling magnetoresistance (TMR) elements
16 Nov 21
In one aspect, a magnetic field sensor includes a plurality of tunneling magnetoresistance (TMR) elements that includes a first TMR element, a second TMR element, a third TMR element and a fourth TMR element.
Rémy Lassalle-Balier, Pierre Belliot, Christophe Hoareau, Jean-Michel Daga
Filed: 28 Aug 19
APP
Utility
Stray-field-immune Coil-activated Position Sensor
11 Nov 21
A sensor comprising: a first magnetoresistive (MR) bridge having a first stray field sensitivity; a second MR bridge having a second stray field sensitivity; and a driver circuitry configured to: (i) supply a first voltage to the first MR bridge, and (ii) supply a second voltage to the second MR bridge that is different from the first voltage, wherein supplying the first voltage and the second voltage to the first MR bridge and the second MR bridge, respectively, causes the first stray field sensitivity to match the second stray field sensitivity.
Hernán D. Romero
Filed: 8 May 20
GRANT
Utility
Target alignment and stray field indicator
9 Nov 21
A magnetic field sensor is provided, including a substrate, a first bridge circuit formed on the substrate, the first bridge circuit being arranged to generate a first signal indicative of a motion of a target, and a second bridge circuit formed on the substrate, the second bridge circuit being arranged to generate a second signal indicative of whether the magnetic field sensor is aligned with the target.
Jeffrey Eagen
Filed: 26 Feb 20
GRANT
Utility
Hall element signal calibrating in angle sensor
9 Nov 21
In one aspect, an angle sensor includes a first Hall element disposed on a first axis, a second Hall element disposed on a second axis perpendicular to the first axis and a conduction path having a first portion extending parallel to the first axis and a second portion parallel to the second axis.
Till-Jonas Ostermann, Dominik Geisler, Simon Rock, Fabian Winkler
Filed: 23 Mar 20
GRANT
Utility
Non-volatile memory data and address encoding for safety coverage
9 Nov 21
A method is disclosed for use in an electronic device having a non-volatile storage device and a volatile storage device, the method comprising: retrieving a first encoded data packet from a first address in the non-volatile storage device; decoding the first encoded data packet to obtain a first data item and a first error code corresponding to the first data item, the first encoded data packet being decoded by using a first coding key that is associated with the first address; detecting whether the first data item is corrupt based on the first error code and an error correction function, storing the first data item at a first address in the volatile storage device when the first data item is not corrupt, and transitioning the electronic device into a safe state when the first data item is corrupt.
Nicolas Rigoni, Nicolás Rafael Biberidis, Ahmed Hassan Fahmy, Octavio H. Alpago
Filed: 17 Mar 20
GRANT
Utility
Method and apparatus for eliminating EEPROM bit-disturb
9 Nov 21
A method for use in a memory device including a first memory matrix is provided, the method comprising: receiving a write request that is associated with a first memory cell, the first memory cell being part of the first memory matrix; copying a content of a second memory cell into a register, the second memory cell being part of the first memory matrix; overwriting the second memory cell with the content of the register when the content of the second memory cell is different from the content of the register; and writing, to the first memory cell, at least a portion of data that is associated with the write request.
Muhammad Sarwar, Vyankatesh Gupta, James McClay, Sundar Chetlur, Harianto Wong
Filed: 18 Mar 20
GRANT
Utility
Angular magnetic field sensor and rotating target with stray field immunity
2 Nov 21
A system for detecting a magnetic target includes a magnetic field sensor comprising two or more sensing clusters positioned on a surface of a substrate; and a magnetic target comprising at least four magnetic quadrants spaced evenly around a center point of the magnetic target.
Ali Husain Yusuf Sirohiwala, Nevenka Kozomora
Filed: 14 Sep 18
GRANT
Utility
Magnetic field sensors having stray field rejection
2 Nov 21
Described embodiments provide a magnetic field sensor that includes first and second spaced magnetic field sensing elements that each generate a signal indicative of a magnetic field associated with a target.
Virag V. Chaware, Aaron Cook
Filed: 5 Aug 20
GRANT
Utility
Sensors having signal redundancy
2 Nov 21
Methods and apparatus for combining redundant signals to generate outputs signals with enhanced accuracy and/or risk level.
Andreas P. Friedrich, Christophe Lutz
Filed: 5 Mar 20
GRANT
Utility
Magnetic field sensor for angle detection with a phase-locked loop
2 Nov 21
A magnetic field sensor includes a phase-locked loop to receive a measured magnetic field signal formed from sensing element output signals of a plurality of magnetic field sensing elements in response to a magnetic field.
Steven Daubert
Filed: 12 Jun 15
APP
Utility
Current Sensor Having A Flux Concentrator For Redirecting A Magnetic Field Through Two Magnetic Field Sensing Elements
21 Oct 21
A method can use a current sensor that can include a magnetic flux concentrator along with first and second magnetic field sensing elements disposed proximate to the magnetic flux concentrator, wherein the magnetic flux concentrator is operable to influence a direction of first and second magnetic fields at the first and second magnetic field sensing elements, respectively, the first and second magnetic fields resulting from an electrical current passing through a conductor, the first and second magnetic field sensing elements operable to generate first and second signals, respectively, in response to the first and second magnetic fields, respectively, wherein the current sensor can also include a differencing circuit operable to subtract the first and second signals to generate a difference signal related to the electrical current.
Yannick Vuillermet, Cédric Gillet, Loïc André Messier, Xavier Blanc
Filed: 30 Jun 21
APP
Utility
Sensors Having Dynamic Phase Compensation
21 Oct 21
Methods and apparatus for a magnetic field sensor having dynamic offset compensation that determines offset voltages for a number of phases each having a bias current across a magnetic field sensing element in a different direction.
Nicolás Ronis, Franco Noel Martin Pirchio
Filed: 15 Apr 20
GRANT
Utility
Sensor having a shaped coil
19 Oct 21
Methods and apparatus for sensing target position by generating a signal by energizing a shaped coil with an AC signal.
Bryan Cadugan
Filed: 1 Aug 19
GRANT
Utility
Current sensor integrated circuits
19 Oct 21
A current sensor integrated circuit (IC) includes a unitary lead frame having at least one first lead having a terminal end, at least one second lead having a terminal end, and a paddle having a first surface and a second opposing surface.
Shixi Louis Liu, Paul A. David, Shaun D. Milano, Rishikesh Nikam, Alexander Latham, Wade Bussing, Natasha Healey, Georges El Bacha
Filed: 27 May 20
GRANT
Utility
Magnetic switch with toggle and de-bounce functionality
19 Oct 21
A magnetic switch sensor is provided having a magnetic field sensing element configured to generate a magnetic field signal in response to a magnetic field indicative of a distance or angle between the magnetic field sensing element and a target, a first circuit coupled to receive the magnetic field signal and having an output to provide a comparison signal, and a debounce circuit coupled to receive the comparison signal and having an output to provide a debounced signal.
Joseph James Judkins, III, Ryan J. Metivier
Filed: 30 Apr 19
GRANT
Utility
Magnetic field sensor with modulated diagnostic signal
12 Oct 21
A magnetic field sensor comprises a first coil configured to generate a magnetic field having a first frequency and induce a reflected magnetic field from a target.
Hernán D. Romero, Alexander Latham
Filed: 21 Feb 18
APP
Utility
Current Sensor System
7 Oct 21
A current sensor system includes a plurality of conductors, each having a first major surface, a second major surface opposite the first major surface, and an aperture extending from the first major surface through a thickness of the conductor to the second major surface.
David Augendre, Yannick Vuillermet
Filed: 7 Apr 20
APP
Utility
Hall Element Signal Calibrating In Angle Sensor
23 Sep 21
In one aspect, an angle sensor includes a first Hall element disposed on a first axis, a second Hall element disposed on a second axis perpendicular to the first axis and a conduction path having a first portion extending parallel to the first axis and a second portion parallel to the second axis.
Till-Jonas Ostermann, Dominik Geisler, Simon Rock, Fabian Winkler
Filed: 23 Mar 20
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