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公开(公告)号：US11624799B2
公开(公告)日：2023-04-11
申请号：US17380244
申请日：2021-07-20
Applicant: Allegro MicroSystems, LLC
Inventor： Juan Manuel Cesaretti , Leandro Tozzi , Paola Anabella Ceminari
Abstract: A method for use in a sensor includes generating a first signal by a first sensing module in response to a magnetic field associated with a rotating target, generating a base word based on the first signal, the base word including a first base bit that is generated by comparing respective components of the first signal, reversing a respective polarity of the first signal and offsetting the first signal, generating a test word based on the first signal, the test word being generated after the respective polarity of the first signal is reversed and the first signal is offset, the test word including a first test bit that is generated by comparing the respective components of the first signal, and setting a value of an error signal based on whether the test word matches the base word.
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2.发明授权公开(公告)号：US11467928B2
公开(公告)日：2022-10-11
申请号：US17150140
申请日：2021-01-15
Applicant: Allegro MicroSystems, LLC
Inventor： Juan Manuel Cesaretti , Alejandro Gabriel Milesi
Abstract: 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. The driver circuit is configured to write data to and read data from said single block of non-volatile matrix of memory cells. The single block of non-volatile matrix of memory cells can be provided as a single row electrically erasable programmable read only memory (EEPROM).
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公开(公告)号：US10580289B2
公开(公告)日：2020-03-03
申请号：US16444347
申请日：2019-06-18
Applicant: Allegro MicroSystems, LLC
Inventor： David J. Haas , Juan Manuel Cesaretti , William P. Taylor
IPC: G01R35/00 , G08B29/14 , G01D3/08 , G01R33/00 , G01R33/07 , G08B21/18 , G08B29/18 , H04L25/49 , G01R33/09 , G01R31/28
Abstract: A sensor integrated circuit includes at least two processing channels responsive to the same or different analog input signals to generate respective processed signals. The two processing channels are non-homogenous and, in some embodiments have different processing accuracies. A checker circuit receives the first and second processed signals and is configured to detect a fault in the sensor integrated circuit when the first and second processed signals differ from each other by more than a predetermined amount.
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公开(公告)号：US10520559B2
公开(公告)日：2019-12-31
申请号：US15676148
申请日：2017-08-14
Applicant: Allegro MicroSystems, LLC
Inventor： Juan Manuel Cesaretti , Andreas P. Friedrich , Gerardo A. Monreal , Alejandro Gabriel Milesi
Abstract: Hall effect elements are driven by current generators that use vertical epi resistors disposed away from an edge of a substrate upon which, within which, or over which, the Hall effect elements, the current generators, and the vertical epi resistors are disposed.
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公开(公告)号：US10006970B2
公开(公告)日：2018-06-26
申请号：US14661042
申请日：2015-03-18
Applicant: Allegro MicroSystems, LLC
Inventor： Manuel Rivas , Juan Manuel Cesaretti , Pablo Javier Bolsinger
CPC classification number: G01R33/0023 , G01R33/07 , G01R33/09 , H03K5/125
Abstract: An electronic comparison circuit can identify at least three conditions of an input signal received by the electronic comparison circuit. A first one of the at least three conditions occurs when a value of the input signal is less than a first threshold value, a second one of the at least three conditions occurs when a value of the input signal is greater than the first threshold value and less than a second threshold value, and a third one of the at least three conditions occurs when a value of the input signal is greater than the second threshold value. A magnetic field sensor can use the electronic comparison circuit.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20180017637A1
公开(公告)日：2018-01-18
申请号：US15207903
申请日：2016-07-12
Applicant: Allegro Microsystems, LLC
Inventor： Juan Manuel Cesaretti
CPC classification number: G01R33/0082 , G01R33/0029 , G01R33/07
Abstract: The systems and methods described can reduce high order temperature coefficients on the Hall plate sensitivity. A temperature coefficient circuit may include a first amplifier to receive a first reference voltage generated in conjunction with a proportional to absolute temperature (PTAT) device and a second amplifier to receive a second reference voltage generated in conjunction with a complementary to absolute temperature (CTAT) device, the second amplifier having a second output node. A plurality of resistors may be disposed in a signal path between output node of the first amplifier and an output node of the second amplifier. The plurality of resistors may be coupled to at least one voltage-to-current converter through one or more resistors taps. The voltage-to-current converter may generate at least one current signal that can be operable to apply a multiplication factor or a division divisor to an amplifier coupled to the voltage-to-current converter.
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7.发明申请公开(公告)号：US20130335066A1
公开(公告)日：2013-12-19
申请号：US13969702
申请日：2013-08-19
Applicant: Allegro Microsystems, LLC
Inventor： Juan Manuel Cesaretti , Gerardo A. Monreal , William P. Taylor , Michael C. Doogue
IPC: G01R35/00
CPC classification number: G01R35/005 , G01R33/0035
Abstract: A magnetic field sensor includes a diagnostic circuit that allows a self-test of most of, or all of, the circuitry of the magnetic field sensor, including a self-test of a magnetic field sensing element used within the magnetic field sensor. The magnetic field sensor can generate a diagnostic magnetic field to which the magnetic field sensor is responsive.
Abstract translation: 磁场传感器包括诊断电路，其允许对磁场传感器的电路的大部分或全部进行自检，包括在磁场传感器内使用的磁场感测元件的自检。 磁场传感器可以产生磁场传感器响应的诊断磁场。
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公开(公告)号：US11848682B2
公开(公告)日：2023-12-19
申请号：US17647639
申请日：2022-01-11
Applicant: Allegro MicroSystems, LLC
Inventor： Ezequiel Rubinsztain , Pablo Javier Bolsinger , Juan Manuel Cesaretti
CPC classification number: H03M1/188 , H03M1/1245 , H03M1/181 , H03M1/0621
Abstract: Apparatus includes an ADC configured to convert an analog signal to a digital signal, a comparator having a first input responsive to the analog signal, a second input responsive to the digital signal, and an output at which a comparison signal is provided, and an output checker configured to process the comparison signal to generate a fault signal indicative of whether a fault has occurred in the ADC. The comparator can be an analog comparator in which case the digital signal is converted to an analog signal for the comparison or a digital comparator in which case an additional ADC is provided to convert the analog signal into a digital signal for the comparison. Embodiments include more than one ADC in which case summation elements are provided to sum the analog signals and the digital signals for the comparison.
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9.发明授权公开(公告)号：US11175160B2
公开(公告)日：2021-11-16
申请号：US16657032
申请日：2019-10-18
Applicant: Allegro MicroSystems, LLC
Inventor： Pablo Aguirre , Juan Manuel Cesaretti , Jesse Lapomardo
Abstract: 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. The first and second magnetic field sensing elements are arranged in a sideshaft orientation with respect to a rotating object and offset with respect to an axis of rotation of the rotating object, the rotating object having a radial axis and a tangential axis. The pre-processor is configured to receive the first and second magnetic field signals from the analog front end and to apply a correction factor to one or both of the first and second magnetic field signals to produce first and second scaled magnetic field signals. The arctangent processor is configured to calculate an arctangent value of the first and second scaled magnetic field signals.
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10.发明申请公开(公告)号：US20210133052A1
公开(公告)日：2021-05-06
申请号：US17150140
申请日：2021-01-15
Applicant: Allegro MicroSystems, LLC
Inventor： Juan Manuel Cesaretti , Alejandro Gabriel Milesi
Abstract: 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. The driver circuit is configured to write data to and read data from said single block of non-volatile matrix of memory cells. The single block of non-volatile matrix of memory cells can be provided as a single row electrically erasable programmable read only memory (EEPROM).
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