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公开(公告)号：US20170139016A1
公开(公告)日：2017-05-18
申请号：US15347872
申请日：2016-11-10
Applicant: NXP B.V.
Inventor： Klaus Reimann , Robert van Veldhoven , Jaap Ruigrok , Selcuk Ersoy , Ralf van Otten , Jörg Kock
CPC classification number: G01R33/0029 , G01R33/0017 , G01R33/0035 , G01R33/0082 , G01R33/096
Abstract: A magnetic field sensor is disclosed for providing an output signal in response to an external magnetic field. The sensor comprises a primary magnetic field transducer for producing a primary signal in response to the external magnetic field and having a first magnetic field saturation characteristic; a secondary magnetic field transducer for producing a secondary signal in response to the external magnetic field and having a second magnetic field saturation characteristic. The first magnetic field saturation characteristic is different from the second magnetic field saturation characteristic. The sensor is configured to use the secondary signal to correct for errors in the output signal arising from saturation of the primary transducer.
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公开(公告)号：US10914611B2
公开(公告)日：2021-02-09
申请号：US16113229
申请日：2018-08-27
Applicant: NXP B.V.
Inventor： Stephan Marauska , Edwin Schapendonk , Jörg Kock , Dennis Helmboldt , Ralf van Otten , Jaap Ruigrok
IPC: G01D5/16
Abstract: A system includes a magnet having an axis of rotation, the magnet being configured to produce a magnetic field. The system further includes a plurality of magnetoresistive sensor elements, each of the magnetoresistive sensor elements having a magnetic free layer configured to generate a vortex magnetization pattern in the magnetic free layer, and the magnetoresistive sensor elements being configured to produce output signals in response to the magnetic field. A rotation angle of a rotating element to which the magnet is coupled may be determined using the plurality of output signals.
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公开(公告)号：US10006972B2
公开(公告)日：2018-06-26
申请号：US15347872
申请日：2016-11-10
Applicant: NXP B.V.
Inventor： Klaus Reimann , Robert van Veldhoven , Jaap Ruigrok , Selcuk Ersoy , Ralf van Otten , Jörg Kock
CPC classification number: G01R33/0029 , G01R33/0017 , G01R33/0035 , G01R33/0082 , G01R33/096
Abstract: A magnetic field sensor is disclosed for providing an output signal in response to an external magnetic field. The sensor comprises a primary magnetic field transducer for producing a primary signal in response to the external magnetic field and having a first magnetic field saturation characteristic; a secondary magnetic field transducer for producing a secondary signal in response to the external magnetic field and having a second magnetic field saturation characteristic. The first magnetic field saturation characteristic is different from the second magnetic field saturation characteristic. The sensor is configured to use the secondary signal to correct for errors in the output signal arising from saturation of the primary transducer.
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Patent Agency Ranking
4.发明申请公开(公告)号：US20190383644A1
公开(公告)日：2019-12-19
申请号：US16011974
申请日：2018-06-19
Applicant: NXP B.V.
Inventor： Stephan Marauska , Edwin Schapendonk , Dennis Helmboldt , Jaap Ruigrok , Ralf van Otten , Jan Przytarski , Jörg Kock
Abstract: A system includes a magnet configured to produce a magnetic field, the magnet having an asymmetric magnetization configuration that produces a distinct feature in the magnetic field. The asymmetric magnetization configuration can be produced via an asymmetric physical characteristic, nonuniform magnetization strengths, nonuniform magnetization distributions, off-centered magnet, and so forth. Magnetic field sensors are configured to produce output signals in response to the magnetic field, the output signals being indicative of the distinct feature in the magnetic field. A processing circuit receives the output signals and determines a rotation angle for the magnet using the output signals, the rotation angle having a range of 0-360°.
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公开(公告)号：US20160094218A1
公开(公告)日：2016-03-31
申请号：US14835403
申请日：2015-08-25
Applicant: NXP B.V.
Inventor： Ralf van Otten , Franciscus Schoofs , Matthias Rose , Hendrik Bergveld
IPC: H03K17/687
CPC classification number: H03K17/687 , H03K17/04206 , H03K17/102 , H03K17/163 , H03K17/6871 , H03K2017/6875 , H03K2217/0081
Abstract: A cascode transistor circuit comprising a depletion-mode switch in series with a normally-off switch between a drain output terminal and a source output terminal. The circuit also includes a controller comprising a controller output terminal configured to provide a normally-on control signal for a normally-on control terminal of the depletion-mode switch, wherein the normally-on control signal is independent of the normally-off control signal; a negative voltage source configured to provide a negative voltage to the normally-on control terminal of the depletion-mode switch; and a feedback capacitance between the drain output terminal and a control node in a circuit path between the controller output terminal and the normally-on control terminal of the depletion-mode switch.
Abstract translation: 一种共源共栅晶体管电路，包括与漏极输出端子和源极输出端子之间的常关断开串联的耗尽型开关。 该电路还包括控制器，该控制器包括控制器输出端子，该控制器输出端子被配置为为耗尽型开关的常开控制端提供常开控制信号，其中常开控制信号独立于常关控制信号 ; 负电压源，被配置为向所述耗尽型开关的常开控制端子提供负电压; 以及在所述控制器输出端子与所述耗尽型开关的常开控制端子之间的电路路径中的所述漏极输出端子与所述控制节点之间的反馈电容。
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6.发明授权公开(公告)号：US10914609B2
公开(公告)日：2021-02-09
申请号：US16011974
申请日：2018-06-19
Applicant: NXP B.V.
Inventor： Stephan Marauska , Edwin Schapendonk , Dennis Helmboldt , Jaap Ruigrok , Ralf van Otten , Jan Przytarski , Jörg Kock
Abstract: A system includes a magnet configured to produce a magnetic field, the magnet having an asymmetric magnetization configuration that produces a distinct feature in the magnetic field. The asymmetric magnetization configuration can be produced via an asymmetric physical characteristic, nonuniform magnetization strengths, nonuniform magnetization distributions, off-centered magnet, and so forth. Magnetic field sensors are configured to produce output signals in response to the magnetic field, the output signals being indicative of the distinct feature in the magnetic field. A processing circuit receives the output signals and determines a rotation angle for the magnet using the output signals, the rotation angle having a range of 0-360°.
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公开(公告)号：US20200064157A1
公开(公告)日：2020-02-27
申请号：US16113229
申请日：2018-08-27
Applicant: NXP B.V.
Inventor： Stephan Marauska , Edwin Schapendonk , Jörg Kock , Dennis Helmboldt , Ralf van Otten , Jaap Ruigrok
IPC: G01D5/16
Abstract: A system includes a magnet having an axis of rotation, the magnet being configured to produce a magnetic field. The system further includes a plurality of magnetoresistive sensor elements, each of the magnetoresistive sensor elements having a magnetic free layer configured to generate a vortex magnetization pattern in the magnetic free layer, and the magnetoresistive sensor elements being configured to produce output signals in response to the magnetic field. A rotation angle of a rotating element to which the magnet is coupled may be determined using the plurality of output signals.
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公开(公告)号：US09705489B2
公开(公告)日：2017-07-11
申请号：US14835403
申请日：2015-08-25
Applicant: NXP B.V.
Inventor： Ralf van Otten , Franciscus Schoofs , Matthias Rose , Hendrik Bergveld
IPC: H03K17/687 , H03K17/10 , H03K17/16 , H03K17/042
CPC classification number: H03K17/687 , H03K17/04206 , H03K17/102 , H03K17/163 , H03K17/6871 , H03K2017/6875 , H03K2217/0081
Abstract: A cascode transistor circuit comprising a depletion-mode switch in series with a normally-off switch between a drain output terminal and a source output terminal. The circuit also includes a controller comprising a controller output terminal configured to provide a normally-on control signal for a normally-on control terminal of the depletion-mode switch, wherein the normally-on control signal is independent of the normally-off control signal; a negative voltage source configured to provide a negative voltage to the normally-on control terminal of the depletion-mode switch; and a feedback capacitance between the drain output terminal and a control node in a circuit path between the controller output terminal and the normally-on control terminal of the depletion-mode switch.
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