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公开(公告)号：US20200049760A1
公开(公告)日：2020-02-13
申请号：US16655657
申请日：2019-10-17
Applicant: Allegro MicroSystems, LLC
Inventor： Shaun D. Milano , Georges El Bacha , Michael C. Doogue , David J. Haas , Gregory Delmain , Michael Gaboury , William P. Taylor
Abstract: 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. In illustrative embodiments, an IC output can output a voltage corresponding to the currents of the first and second current elements.
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公开(公告)号：US10120041B2
公开(公告)日：2018-11-06
申请号：US14670453
申请日：2015-03-27
Applicant: Allegro Microsystems, LLC
Inventor： David J. Haas , Michael Gaboury , Alexander Latham
Abstract: In one aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall-type elements in parallel and connected to the chopper stabilized amplifier. In another aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall quad elements in parallel and connected to the chopper stabilized amplifier. In a further aspect, a current sensor has a bandwidth of 1 MHz and includes a chopper stabilized amplifier and a plurality of Hall quad elements, fabricated in silicon, in parallel and connected to the chopper stabilized amplifier.
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Patent Agency Ranking
公开(公告)号：US11313899B2
公开(公告)日：2022-04-26
申请号：US16655657
申请日：2019-10-17
Applicant: Allegro MicroSystems, LLC
Inventor： Shaun D. Milano , Georges El Bacha , Michael C. Doogue , David J. Haas , Gregory Delmain , Michael Gaboury , William P. Taylor
Abstract: 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. In illustrative embodiments, an IC output can output a voltage corresponding to the currents of the first and second current elements.
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公开(公告)号：US20160282425A1
公开(公告)日：2016-09-29
申请号：US14670453
申请日：2015-03-27
Applicant: Allegro Microsystems, LLC
Inventor： David J. Haas , Michael Gaboury , Alexander Latham
CPC classification number: G01R33/072 , G01R15/202 , G01R19/0092 , G01R33/0017 , G01R33/0035 , G01R33/07 , G01R33/075
Abstract: In one aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall-type elements in parallel and connected to the chopper stabilized amplifier. In another aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall quad elements in parallel and connected to the chopper stabilized amplifier. In a further aspect, a current sensor has a bandwidth of 1 MHz and includes a chopper stabilized amplifier and a plurality of Hall quad elements, fabricated in silicon, in parallel and connected to the chopper stabilized amplifier.
Abstract translation: 一方面，磁场传感器包括并联的斩波稳定放大器和多个霍尔型元件，并连接到斩波稳定放大器。 另一方面，磁场传感器包括斩波稳定放大器和并联的多个霍尔四边形元件，并连接到斩波稳定放大器。 在另一方面，电流传感器具有1MHz的带宽，并且包括并联并连接到斩波稳定放大器的斩波稳定放大器和制造在硅中的多个霍尔四边形元件。
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公开(公告)号：US20180275214A1
公开(公告)日：2018-09-27
申请号：US15989323
申请日：2018-05-25
Applicant: Allegro MicroSystems, LLC
Inventor： David J. Haas , Michael Gaboury , Alexander Latham
CPC classification number: G01R33/072 , G01R15/202 , G01R19/0092 , G01R33/0017 , G01R33/0035 , G01R33/07 , G01R33/075
Abstract: In one aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall-type elements in parallel and connected to the chopper stabilized amplifier. In another aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall quad elements in parallel and connected to the chopper stabilized amplifier. In a further aspect, a current sensor has a bandwidth of 1 MHz and includes a chopper stabilized amplifier and a plurality of Hall quad elements, fabricated in silicon, in parallel and connected to the chopper stabilized amplifier.
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公开(公告)号：US10234516B2
公开(公告)日：2019-03-19
申请号：US15989323
申请日：2018-05-25
Applicant: Allegro MicroSystems, LLC
Inventor： David J. Haas , Michael Gaboury , Alexander Latham
Abstract: In one aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall-type elements in parallel and connected to the chopper stabilized amplifier. In another aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall quad elements in parallel and connected to the chopper stabilized amplifier. In a further aspect, a current sensor has a bandwidth of 1 MHz and includes a chopper stabilized amplifier and a plurality of Hall quad elements, fabricated in silicon, in parallel and connected to the chopper stabilized amplifier.
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公开(公告)号：US20150185293A1
公开(公告)日：2015-07-02
申请号：US14578800
申请日：2014-12-22
Applicant: ALLEGRO MICROSYSTEMS, LLC
Inventor： Shaun D. Milano , Georges El Bacha , Michael C. Doogue , David J. Haas , Gregory Delmain , Michael Gaboury , William P. Taylor
Abstract: 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. In illustrative embodiments, an IC output can output a voltage corresponding to the currents of the first and second current elements.
Abstract translation: 用于提供具有驱动电流源，耦合到驱动电流源的磁感测元件，具有第一和第二差分输出的磁感测元件以及第一和第二电流元件的集成电路的方法和装置，以提供相对于 驱动电流源，其中所述第一电流元件耦合到所述第一差分输出，并且所述第二电流元件耦合到所述第二差分输出。 在说明性实施例中，IC输出可以输出对应于第一和第二电流元件的电流的电压。
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