607 patents
Page 12 of 31
Utility
Systems and Methods for Integrated Shielding in a Current Sensor
5 May 22
Systems and methods described herein are directed towards integrating a shield layer into a current sensor to shield a magnetic field sensing element and associated circuitry in the current sensor from electrical, voltage, or electrical transient noise.
Shaun D. Milano, Bryan Cadugan, Michael C. Doogue, Alexander Latham, William P. Taylor, Harianto Wong, Sundar Chetlur
Filed: 19 Jan 22
Utility
Differential Current Sensor
5 May 22
Methods and apparatus for measuring a current difference between at least two current traces in a circuit board.
Robert A. Briano, Wade Bussing, Timothy A. Clark
Filed: 29 Oct 20
Utility
Differential current sensor
3 May 22
Methods and apparatus for measuring a current difference between at least two current traces in a circuit board.
Robert A. Briano, Wade Bussing, Timothy A. Clark
Filed: 29 Oct 20
Utility
Targets for coil actuated position sensors
3 May 22
Apparatus includes a first portion of conductive material having varying response to a generated magnetic field along a length of the conductive material, wherein the first portion of conductive material produces a varying eddy current and a varying reflected magnetic field, in response to the generated magnetic field.
Alexander Latham, Claude Fermon, Gerardo A. Monreal, Alejandro Gabriel Milesi
Filed: 24 Mar 20
Utility
Magnetic Field Sensor
28 Apr 22
Methods and apparatus that can include a rotatable target to generate a sinusoidal signal in a magnetic field sensor, wherein the target includes a plurality of sinusoidal teeth to reduce angular error.
Rémy Lassalle-Balier, Jeffrey Eagen, Damien Dehu, Paul A. David, Andrea Foletto, Maxime Rioult
Filed: 7 Jan 22
Utility
Phase Compensation For An Inductive Position Sensor
28 Apr 22
An interface circuit for a position sensor system including an oscillator generating an oscillation signal having a carrier frequency and a primary phase, a primary coil responsive to the oscillation signal, and a secondary coil electromagnetically coupled to the primary coil by a target and configured to generate a secondary signal having the carrier frequency and a secondary phase provides phase compensation.
Mathew Drouin
Filed: 28 Oct 20
Utility
Magnetic field influence during rotation movement of magnetic target
26 Apr 22
A system for reducing stray field effects comprises a magnetic target producing a changing magnetic field; a first set of magnetic field sensing elements placed in spaced relation to the magnetic target and comprising at least a first magnetic field sensing element and a second magnetic field sensing element, each magnetic field sensing element having an axis of maximum sensitivity; a second set of magnetic field sensing elements placed in spaced relation to the magnetic target and comprising at least a third magnetic field sensing element and a fourth magnetic field sensing element, each magnetic field sensing element having an axis of maximum sensitivity; and wherein the first set of magnetic field sensing elements is positioned closer to a center point of the magnetic field than the second set of magnetic field sensing elements.
Nevenka Kozomora, William Wilkinson, Braden Blanchette
Filed: 9 Nov 20
Utility
Methods and apparatus for sensor diagnostics
26 Apr 22
Methods and apparatus for providing an integrated circuit having a drive current source, a magnetic sensing element coupled to the drive current source, the magnetic sensing element having first and second differential outputs, and first and second current elements to provide respective currents in relation to the drive current source, wherein the first current element is coupled to the first differential output and the second current element is coupled to the second differential output.
Shaun D. Milano, Georges El Bacha, Michael C. Doogue, David J. Haas, Gregory Delmain, Michael Gaboury, William P. Taylor
Filed: 17 Oct 19
Utility
Method and apparatus for magnetic sensor producing a changing magnetic field
26 Apr 22
Methods and apparatus for detecting a magnetic field include a semiconductor substrate, a coil configured to provide a changing magnetic field in response to a changing current in the coil; and a magnetic field sensing element supported by the substrate.
Paul A. David, William P. Taylor
Filed: 23 Apr 20
Utility
Single channel magnetoresistance-based angle sensor
19 Apr 22
In one aspect, an angle sensor includes analog circuitry configured to generate an analog value having a tangent value, an analog-to-digital converter configured to convert the analog value to a digital value and digital circuitry configured to receive the digital value.
Hernán D. Romero
Filed: 22 Jan 20
Utility
Magnetic field sensor providing a movement detector
19 Apr 22
A magnetic field sensor has a plurality of magnetic field sensing elements and operates as a motion detector for sensing a rotation or other movement of a target object.
Paul A. David, William P. Taylor
Filed: 12 Jun 20
Utility
Dual Circuit Digital Isolator
14 Apr 22
An apparatus, comprising: a substrate; a coupling capacitor that is formed over the substrate; and an isolator that is formed between the substrate and the coupling capacitor, the isolator including: (a) an MP-well layer, (b) a first well layer, (c) an epi tub layer that is nested in the MP-well layer and the first well layer, and (d) a second well layer that is nested in the epi tub layer.
Sundar Chetlur, Maxim Klebanov, Cory Voisine, Kenneth Snowdon, Hsuan-Jung Wu
Filed: 9 Oct 20
Utility
Magnetic field sensor with an adjustable threshold for stray field immunity
5 Apr 22
A magnetic field sensor for detecting motion of an object includes one or more magnetic field sensing elements configured to generate a magnetic field signal in response to a magnetic field associated with the object and a detector configured to generate a comparison signal having edges occurring in response to a comparison of the magnetic field signal and a threshold signal and occurring at a rate corresponding to a speed of motion of the object.
Florian Kulla, Andrea Foletto
Filed: 1 Oct 20
Utility
Photodetector with a buried layer
5 Apr 22
An electronics module assembly for detecting photons is provided to include: a substrate layer; a buried layer deposited upon a first surface area of the substrate layer; an intrinsic layer deposited upon a first portion of a first surface area of the buried layer; a plug layer deposited upon a second portion of the first surface area of the buried layer; a p-plus layer deposited upon a first surface area of the intrinsic layer; an n-plus layer deposited upon a first surface area of the plug layer; a pre-metal dielectric (PMD) layer deposited upon the p-plus layer and n-plus layer; a first node coupled, through the PMD layer, to the p-plus layer; and a second node coupled, through the PMD layer, to the n-plus layer.
Bryan Cadugan, Harianto Wong, William P. Taylor
Filed: 11 Feb 19
Utility
Magnetic field sensor for angle detection with a phase-locked loop
29 Mar 22
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: 10 Sep 20
Utility
Signal isolator having enhanced creepage characteristics
29 Mar 22
Methods and apparatus for a signal isolator having enhanced creepage characteristics.
Robert A. Briano, Shixi Louis Liu, William P. Taylor
Filed: 18 Sep 19
Utility
Semiconductor Device
24 Mar 22
A semiconductor device is disclosed including a sub-layer with first conductivity type, a drift layer with first conductivity type, a base region with second conductivity type positioned on the drift layer, a source region in contact with the base region, a source electrode, a plurality of trenches, at least one of the trenches in contact with the drift layer, the base region, and the source region, a plurality of insulating regions, at least one of the insulating regions positioned inside of each trench, a plurality of gate electrodes, at least one of the gate electrodes positioned inside of each trench; and a plurality of field plates, at least one of the field plates electrically connected to the source electrode and positioned in the insulating region in the trench.
Taro KONDO
Filed: 1 Feb 21
Utility
High performance magnetic angle sensor
22 Mar 22
A sensor is disclosed for detecting an orientation of a magnet, the sensor comprising: a first sensor array including a first plurality of sensor elements that are arranged along a first line; a second sensor array including a second plurality of sensor elements that are arranged along a second line; and a processing circuitry configured to: detect a magnetic field produced by the magnet by using the first sensor array, and identify a first point on the first line where at least one component of the magnetic field has a predetermined value; detect the magnetic field by using the second sensor array, and identify a second point on the second line where at least one component of the magnetic field has the predetermined value; detect an orientation of the magnet relative to the sensor based on the first point and the second point; and output an indication of the orientation of the magnet based on the first point and the second point.
Aurelian Diaconu, Paul A. David
Filed: 14 Nov 19
Utility
Data converter false saturation detector
15 Mar 22
According to aspects of the disclosure, an apparatus is disclosed comprising: a controller; an analog-to-digital converter (ADC) coupled to the controller, the ADC including an input terminal for receiving a sensor signal from a transducer; and a diagnostic circuit coupled to the input terminal of the ADC and to the controller, the diagnostic circuit being configured to: generate a diagnostic signal that indicates whether a voltage at the input terminal of the ADC meets a first threshold, and provide the diagnostic signal to the controller, wherein the controller is configured to: receive a data sample from the ADC, detect whether the data sample meets a second threshold, and transition the apparatus into a safe state when: (i) the diagnostic signal indicates that the voltage at the input terminal does not meet the first threshold, and (ii) the data sample meets the second threshold.
Jay M. Towne, Peter Tengstrand, Devon Fernandez
Filed: 16 Dec 19
Utility
Stray Field Immune Angle Sensor
10 Mar 22
An apparatus comprising: a ring magnet having first surface, a second surface, and a bore extending from the first surface to the second surface, the bore having a central longitudinal axis; a substrate disposed inside the bore, the substrate having a first axis and a second axis; a first group of magnetic field sensing elements that are formed on the substrate, the first group of magnetic field sensing elements including a first in plane magnetic transducer and a second magnetic field sensing element, the first magnetic field sensing element being aligned with the first axis and the second magnetic field sensing element being aligned with the second axis; and a second group of magnetic field sensing elements that are formed on the substrate, the second group of magnetic field sensing elements including a third magnetic field sensing element and a fourth magnetic field sensing element, the third magnetic field sensing element being aligned with the first axis, and the fourth MR element being aligned with the second axis.
Hernán D. Romero
Filed: 9 Sep 20