278 patents
Page 9 of 14
Utility
High Performance Magnetic Angle Sensor
20 May 21
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
Absolute Angle Sensor with Improved Accurancy Using Error Estimation
20 May 21
In some embodiments, a method can include receiving, by an angle sensor, a first periodic angle signal indicative of an angle of a first magnetic field associated with a first track of a target; receiving, by the angle sensor, a second periodic angle signal indicative of an angle of a second magnetic field associated with a second track of the target; generating an uncorrected absolute angle signal indicative of an absolute angle of the target based on the first and second periodic angle signals; determining an estimated error associated with the uncorrected absolute angle signal based on the first periodic angle signal and the second periodic signal; subtracting the estimated error from the uncorrected absolute angle to generate a corrected absolute angle signal; and providing the corrected absolute angle signal as output of the angle sensor.
Andrea Foletto
Filed: 20 Nov 19
Utility
Circuit and Method for Storing Information In Non-volatile Memory During a Loss of Power Event
6 May 21
A data storage circuit for storing data from volatile memory in response to a power loss, the data storage circuit including an input for receiving a power loss signal in response to a power loss from at least one power source, an input configured to receive data from a volatile memory, a single block of non-volatile matrix of memory cells and a driver circuit coupled to said single row of non-volatile matrix of memory cells.
Juan Manuel Cesaretti, Alejandro Gabriel Milesi
Filed: 15 Jan 21
Utility
Magnetic Field Sensor and Method with Reduced Distortion Measurement In Sideshaft Applications
22 Apr 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
Utility
Angle Sensor with Offline Error Correction
8 Apr 21
An angle sensor can have a plurality of magnetic field sensing elements configured to detect a magnetic field and generate a respective plurality of magnetic field signals.
Nicolas Rigoni, Octavio H. Alpago
Filed: 4 Oct 19
Utility
Converter Digital Control Circuit with Adaptive Feedforward Compensation
1 Apr 21
A control circuit for a voltage regulator includes a divider coupled to the regulated output voltage to generate a divided voltage having a value that is a fraction of the regulated output voltage, an ADC responsive to the divided voltage to generate a feedback control signal, a digital compensator responsive to the feedback control signal and to a feedforward control signal scaled by a feedforward gain value to generate a compensator signal, and a pulse width modulator responsive to the compensator signal to generate a voltage control signal to control a switch of the voltage regulator.
Kapil Kesarwani, Mackenzie Tope
Filed: 1 Oct 19
Utility
BLDC Motor Controller/driver
25 Mar 21
Methods and apparatus to control a three-phase BLDC motor with a curve transformer having an index value for each stored input value and output value for providing stored corner points for outputs of the curve transformer.
Yisong Lu
Filed: 16 Mar 20
Utility
Signal Isolator Having Enhanced Creepage Characteristics
18 Mar 21
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
Signal Isolator with Three State Data Transmission
18 Mar 21
A signal isolator integrated circuit package includes a first circuit having a first input and a first output, a second circuit having a second input and a second output, an isolation barrier layer between the first circuit and the second circuit, wherein the second output of the second circuit is coupled to the first input of the first circuit through the isolation barrier.
Robert A. Briano, Pedram Sotoodeh Shahnani, Cory Voisine
Filed: 5 Mar 20
Utility
Reducing Voltage Non-linearity In a Bridge Having Tunneling Magnetoresistance (TMR) Elements
4 Mar 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
Utility
Tunnel Magnetoresistance (TMR) Element Having Cobalt Iron and Tantalum Layers
4 Mar 21
In one aspect, a tunnel magnetoresistance (TMR) element includes a magnesium oxide (MgO) layer, a cobalt iron boron (CoFeB) layer in direct contact with the MgO layer and a cobalt iron (CoFe) layer.
Paolo Campiglio, Amal Hamdache, Julien Voillot
Filed: 18 Sep 19
Utility
Dual Tunnel Magnetoresistance (TMR) Element Structure
4 Mar 21
In one aspect, a dual tunnel magnetoresistance (TMR) element structure includes a first TMR element and a second TMR element.
Paolo Campiglio, Amal Hamdache
Filed: 15 Nov 19
Utility
Magnetic Field Influence During Rotation Movement of Magnetic Target
25 Feb 21
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
Integrated Circuit Package Having a Low Profile
25 Feb 21
A method of providing a sensor IC package can include applying a film to a leadframe having first and second surfaces, mounting at least one component to the film, and applying a pre-mold material to cover at least a portion of the leadframe and the passive component while leaving a first side of the leadframe exposed.
Paul A. David, Harry Chandra, William P. Taylor
Filed: 22 Aug 19
Utility
Single Chip Signal Isolator
25 Feb 21
Methods and apparatus for a signal isolator IC package including a die having a first die portion isolated from a second die portion.
Robert A. Briano, Bruno Luis Uberti, Alejandro Gabriel Milesi, Gerardo A. Monreal
Filed: 22 Aug 19
Utility
Electronic Circuit Structure and Method of Fabricating Electronic Circuit Structure Having Magnetoresistance Element with Improved Electrical Contacts
25 Feb 21
An apparatus including a magnetoresistance element having conductive contacts disposed between the magnetoresistance element and a semiconductor substrate.
Yen Ting Liu, Maxim Klebanov, Bryan Cadugan, Sundar Chetlur, Harianto Wong
Filed: 5 Nov 20
Utility
Magnetic Sensor with Stress Compensation
18 Feb 21
A method is provided comprising: obtaining a temperature reading by using a temperature sensing element that is part of a magnetic field sensor; obtaining a stress reading by using a stress sensing element that is part of the magnetic field sensor; calculating a stress difference using the temperature reading and the stress reading, the stress difference including a difference between an expected stress associated with the temperature reading and the stress reading obtained from the stress sensing element; and adjusting a gain of a sensing element signal based on the stress difference, the sensing element signal being generated at least in part by a magnetic field sensing element that is part of the magnetic field sensor.
Juan Manuel Cesaretti, Evan Shorman
Filed: 12 Aug 19
Utility
Methods And Apparatus For Monitoring A Level Of A Regulated Source
18 Feb 21
A monitor circuit for monitoring a level of a first and second regulated source may monitor a voltage level of regulated voltages or a current level of regulated currents.
Sam Tran, Jay M. Towne, P. Karl Scheller
Filed: 2 Oct 20
Utility
Ground Disconnect Detection for Multiple Voltage Domains
18 Feb 21
Methods and apparatus for an IC package having an impedance detector module configured to have: a first connection to a first external energy source via a first IO pin of the IC package and a second connection to a detection component.
Robert A. Briano
Filed: 13 Aug 19
Utility
Motor Control System with Phase Current Polarity Detection
11 Feb 21
A system is provided for driving a load such as a multi-phase motor.
Kamyar Khosravi, Masahira Kurihara, Gianluca Allegrini, Robert D. Christie
Filed: 8 Aug 19