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公开(公告)号：US20190049529A1
公开(公告)日：2019-02-14
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
CPC classification number: G01R33/077 , G01R33/0029 , G01R33/0082 , G01R33/075 , H01L27/22 , H01L43/14
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：US10088533B2
公开(公告)日：2018-10-02
申请号：US14993495
申请日：2016-01-12
Applicant: Allegro Microsystems, LLC
Inventor： Manuel Rivas , Gerardo A. Monreal , Christine M. Graham , Eric G. Shoemaker
IPC: B60Q3/80 , G01R33/06 , G01R33/07 , G06F3/046 , G01R33/00 , G05F3/08 , H05B33/08 , B60Q3/20 , B60Q3/30
Abstract: An integrated magnetic field sensor includes a magnetic field sensing circuit and a power driving circuit disposed upon or within a common substrate. A method of powering on and off a load uses the above integrated magnetic field sensor.
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公开(公告)号：US20180168014A1
公开(公告)日：2018-06-14
申请号：US15378702
申请日：2016-12-14
Applicant: Allegro MicroSystems, LLC
Inventor： Manuel Rivas , Gerardo A. Monreal
CPC classification number: H05B33/0854 , G01D5/145 , G01D7/00 , G01P13/04 , G01R33/077 , G01R33/093 , G01R33/098 , H05B33/0845 , H05B37/0227
Abstract: In one aspect, an integrated circuit (IC) includes a first magnetic field sensor configured to sense a ring magnet, a second magnetic field sensor configured to sense the ring magnet and processing circuitry configured to receive a first signal from the first magnetic field sensor and to receive a second signal from the second magnetic field sensor. The processing circuitry is further configured to control an on/off state of at least one light emitting diode (LED) and brightness of the LED based on movement and position of the ring magnet with respect to the first and second magnetic field sensors.
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公开(公告)号：US20170089987A1
公开(公告)日：2017-03-30
申请号：US14870834
申请日：2015-09-30
Applicant: Allegro MicroSystems, LLC
Inventor： Gerardo A. Monreal , Andreas P. Friedrich , Claude Fermon , Myriam Pannetier-Lecoeur
CPC classification number: G01R33/0023 , G01R33/09 , G01R33/093
Abstract: A magnetic field sensor and an associated method use one or more magnetoresistance elements driven with an AC mixing current and experiencing an AC mixing magnetic field to generate a DC voltage signal or a DC voltage signal component related to a slope of a transfer curve of the one or more magnetoresistance elements.
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15.发明授权Circuits and methods for generating a diagnostic mode of operation in a magnetic field sensor 有权用于在磁场传感器中产生诊断操作模式的电路和方法公开(公告)号：US08692546B2
公开(公告)日：2014-04-08
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: G01R33/06
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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Patent Agency Ranking
16.发明申请公开(公告)号：US20220342010A1
公开(公告)日：2022-10-27
申请号：US17238543
申请日：2021-04-23
Applicant: Allegro MicroSystems, LLC
Inventor： Hernán D. Romero , Gerardo A. Monreal
Abstract: An electronic circuit can have a first plurality of vertical Hall elements and a second plurality of vertical Hall elements all disposed on a substrate having a plurality of crystal unit cells, wherein the first plurality of vertical Hall elements have longitudinal axes disposed within five degrees of parallel to an edge of the crystal unit cells, and wherein the second plurality of vertical Hall elements have longitudinal axes disposed between eighty-five and ninety-five degrees relative to the longitudinal axes of the first plurality of vertical Hall elements.
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公开(公告)号：US20220221533A1
公开(公告)日：2022-07-14
申请号：US17147819
申请日：2021-01-13
Applicant: Allegro MicroSystems, LLC
Inventor： Bruno Luis Uberti , Gerardo A. Monreal , Hernán D. Romero
Abstract: A magnetic field sensor can be are based upon three element vertical Hall element building blocks, e.g., three element or six element vertical Hall element arrangements, all arranged in a circle. In some embodiments, the circle of vertical Hall elements can be arranged as a CVH sensing element.
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公开(公告)号：US20190103551A1
公开(公告)日：2019-04-04
申请号：US15724576
申请日：2017-10-04
Applicant: Allegro MicroSystems, LLC
Inventor： Juan Manuel Cesaretti , Gerardo A. Monreal , Daniel Musciano
IPC: H01L43/06
Abstract: A planar Hall effect element be formed upon or can include a the P-type substrate. The planar Hall effect element can also include a Hall plate region. The Hall plate region can include a first portion of an N-type layer disposed over the P-type substrate. The first portion of the N-type layer can include a top surface distal from the P-type substrate, and a continuous N-type outer boundary intersecting the top surface of the Hall plate region. The planar Hall effect element can also include an isolation region having a continuous outer boundary and having a continuous inner boundary, the continuous inner boundary in contact with all of the outer boundary of the Hall plate region, the P-type substrate and the first portion of the N-type layer not forming a P/N junction.
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公开(公告)号：US20180249545A1
公开(公告)日：2018-08-30
申请号：US15957004
申请日：2018-04-19
Applicant: Allegro MicroSystems, LLC
Inventor： Manuel Rivas , Gerardo A. Monreal
CPC classification number: H05B33/0854 , G01D5/145 , G01D7/00 , G01P13/04 , G01R33/077 , G01R33/093 , G01R33/098 , H05B33/0845 , H05B37/0227
Abstract: In one aspect, an integrated circuit (IC) includes a first magnetic field sensor configured to sense a ring magnet, a second magnetic field sensor configured to sense the ring magnet and processing circuitry configured to receive a first signal from the first magnetic field sensor and to receive a second signal from the second magnetic field sensor. The processing circuitry is further configured to control an on/off state of at least one light emitting diode (LED) and brightness of the LED based on movement and position of the ring magnet with respect to the first and second magnetic field sensors.
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公开(公告)号：US09733106B2
公开(公告)日：2017-08-15
申请号：US14830098
申请日：2015-08-19
Applicant: Allegro Microsystems, LLC
CPC classification number: G01D5/142 , G01B7/14 , G01D5/16 , G01R33/0023 , G01R33/0206 , G01R33/07
Abstract: In one aspect, a magnetic field sensor includes first and second magnetic field sensing elements having respective first and second maximum response axes. The first and second maximum response axes point along respective first and second different coordinate axes. In response to a magnetic field, the first and second magnetic field sensing elements are operable to generate first and second magnetic field signals. The magnetic field sensor includes an electronic circuit coupled to receive the first and the second magnetic field signals. The electronic circuit is configured to determine a magnitude of a vector sum of the first and the second magnetic field signals and provide one or more signals in response to the magnitude of the vector sum determined.
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