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公开(公告)号：US10598514B2
公开(公告)日：2020-03-24
申请号：US15655390
申请日：2017-07-20
Applicant: Allegro MicroSystems, LLC
Inventor： Gary T. Pepka , P. Karl Scheller
Abstract: In one aspect, an integrated circuit (IC) includes a magnetic field sensor to detect speed and direction of angular rotation of a rotating magnetic structure. The magnetic field sensor includes at least two magnetic field sensing elements configured to sense changes in a magnetic field caused by rotation of the magnetic structure. The IC also includes an output port configured to provide an output signal of the magnetic field sensor. The output signal indicates the speed and one of the direction or a fault.
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公开(公告)号：US11680996B2
公开(公告)日：2023-06-20
申请号：US15709739
申请日：2017-09-20
Applicant: Allegro MicroSystems, LLC
Inventor： Gary T. Pepka , William P. Taylor
CPC classification number: G01R33/0017 , G01R33/0035 , G01R33/09
Abstract: Methods and apparatus for a magnetic sensor having a die and sensor circuitry formed in a device layer of the die with a coil integrated with the die to generate a magnetic field. A magnetoresistive magnetic field sensing element on the die detects changes in the magnetic field generated by the coil as a result of the presence of a ferromagnetic target. The sensor circuitry may process the changes in the magnetic field generated by the coil.
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3.发明申请Magnetic Field Sensing Element Combining a Circular Vertical Hall Magnetic Field Sensing Element with a Planar Hall Element 有权磁场感应元件结合圆形垂直霍尔磁场感应元件与平面霍尔元件公开(公告)号：US20150077100A1
公开(公告)日：2015-03-19
申请号：US14550202
申请日：2014-11-21
Applicant: Allegro MicroSystems, LLC
Inventor： Andreas P. Friedrich , Andrea Foletto , Gary T. Pepka
CPC classification number: G01R33/072 , G01R33/0052 , G01R33/077 , H01L43/065
Abstract: A magnetic field sensor includes a circular vertical Hall (CVH) sensing element and at least one planar Hall element. The CVH sensing element has contacts arranged over a common implant region in a substrate. In some embodiments, the at least one planar Hall element is formed as a circular planar Hall (CPH) sensing element also having contacts disposed over the common implant region. A CPH sensing element and a method of fabricating the CPH sensing element are separately described.
Abstract translation: 磁场传感器包括圆形垂直霍尔（CVH）感测元件和至少一个平面霍尔元件。 CVH感测元件具有布置在衬底中的公共植入区域上的触点。 在一些实施例中，至少一个平面霍尔元件形成为也具有布置在公共植入区域上方的触点的圆形平面霍尔（CPH）感测元件。 分别描述CPH感测元件和制造CPH感测元件的方法。
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公开(公告)号：US20190025083A1
公开(公告)日：2019-01-24
申请号：US15655390
申请日：2017-07-20
Applicant: Allegro MicroSystems, LLC
Inventor： Gary T. Pepka , P. Karl Scheller
CPC classification number: G01D5/145 , G01D5/165 , G01P3/487 , G01R33/072 , G01R33/091
Abstract: In one aspect, an integrated circuit (IC) includes a magnetic field sensor to detect speed and direction of angular rotation of a rotating magnetic structure. The magnetic field sensor includes at least two magnetic field sensing elements configured to sense changes in a magnetic field caused by rotation of the magnetic structure. The IC also includes an output port configured to provide an output signal of the magnetic field sensor. The output signal indicates the speed and one of the direction or a fault.
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5.发明授权Magnetic field sensing element combining a circular vertical hall magnetic field sensing element with a planar hall element 有权磁场感应元件将圆形垂直霍尔磁场感测元件与平面霍尔元件相结合公开(公告)号：US09411023B2
公开(公告)日：2016-08-09
申请号：US14550202
申请日：2014-11-21
Applicant: Allegro MicroSystems, LLC
Inventor： Andreas P. Friedrich , Andrea Foletto , Gary T. Pepka
CPC classification number: G01R33/072 , G01R33/0052 , G01R33/077 , H01L43/065
Abstract: A magnetic field sensor includes a circular vertical Hall (CVH) sensing element and at least one planar Hall element. The CVH sensing element has contacts arranged over a common implant region in a substrate. In some embodiments, the at least one planar Hall element is formed as a circular planar Hall (CPH) sensing element also having contacts disposed over the common implant region. A CPH sensing element and a method of fabricating the CPH sensing element are separately described.
Abstract translation: 磁场传感器包括圆形垂直霍尔（CVH）感测元件和至少一个平面霍尔元件。 CVH感测元件具有布置在衬底中的公共植入区域上的触点。 在一些实施例中，至少一个平面霍尔元件形成为也具有布置在公共植入区域上方的触点的圆形平面霍尔（CPH）感测元件。 分别描述CPH感测元件和制造CPH感测元件的方法。
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Patent Agency Ranking
公开(公告)号：US10480957B2
公开(公告)日：2019-11-19
申请号：US15655383
申请日：2017-07-20
Applicant: Allegro MicroSystems, LLC
Inventor： Thomas Kerdraon , Gary T. Pepka , Dominikus Maisl , Manfred Busch
Abstract: In one aspect, an integrated circuit (IC) includes a magnetic field sensor to detect speed and direction of angular rotation of a rotating magnetic structure. The magnetic field sensor includes at least two magnetic field sensing elements configured to sense changes in a magnetic field caused by rotation of the magnetic structure. The IC also includes an output port configured to provide an output signal of the magnetic field sensor. The output signal indicates the angular direction and one of the speed or a fault.
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公开(公告)号：US10436606B2
公开(公告)日：2019-10-08
申请号：US15655377
申请日：2017-07-20
Applicant: Allegro MicroSystems, LLC
Inventor： Thomas Kerdraon , Gary T. Pepka , Dominikus Maisl , Manfred Busch
Abstract: In one aspect, an integrated circuit (IC) includes a magnetic field sensor to detect an angular speed and an angular direction of a rotating magnetic structure. The magnetic field sensor includes at least two magnetic field sensing elements configured to sense changes in a magnetic field caused by rotation of the magnetic structure. The IC also includes an output port configured to provide an output signal of the magnetic field sensor. The output signal indicates the angular direction and the speed.
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8.发明申请公开(公告)号：US20190025081A1
公开(公告)日：2019-01-24
申请号：US15655377
申请日：2017-07-20
Applicant: Allegro MicroSystems, LLC
Inventor： Thomas Kerdraon , Gary T. Pepka , Dominikus Maisl , Manfred Busch
CPC classification number: G01D5/145 , G01D5/165 , G01P3/487 , G01P13/045 , G01R33/072 , G01R33/091
Abstract: In one aspect, an integrated circuit (IC) includes a magnetic field sensor to detect an angular speed and an angular direction of a rotating magnetic structure. The magnetic field sensor includes at least two magnetic field sensing elements configured to sense changes in a magnetic field caused by rotation of the magnetic structure. The IC also includes an output port configured to provide an output signal of the magnetic field sensor. The output signal indicates the angular direction and the speed.
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公开(公告)号：US20180011150A1
公开(公告)日：2018-01-11
申请号：US15709739
申请日：2017-09-20
Applicant: Allegro MicroSystems, LLC
Inventor： Gary T. Pepka , William P. Taylor
CPC classification number: G01R33/0017 , G01R33/0035 , G01R33/09
Abstract: Methods and apparatus for a magnetic sensor having a die and sensor circuitry formed in a device layer of the die with a coil integrated with the die to generate a magnetic field. A magnetoresistive magnetic field sensing element on the die detects changes in the magnetic field generated by the coil as a result of the presence of a ferromagnetic target. The sensor circuitry may process the changes in the magnetic field generated by the coil.
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公开(公告)号：US20190025082A1
公开(公告)日：2019-01-24
申请号：US15655383
申请日：2017-07-20
Applicant: Allegro MicroSystems, LLC
Inventor： Thomas Kerdraon , Gary T. Pepka , Dominikus Maisl , Manfred Busch
CPC classification number: G01D5/145 , G01D5/165 , G01P3/487 , G01R33/072 , G01R33/091
Abstract: In one aspect, an integrated circuit (IC) includes a magnetic field sensor to detect speed and direction of angular rotation of a rotating magnetic structure. The magnetic field sensor includes at least two magnetic field sensing elements configured to sense changes in a magnetic field caused by rotation of the magnetic structure. The IC also includes an output port configured to provide an output signal of the magnetic field sensor. The output signal indicates the angular direction and one of the speed or a fault.
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