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公开(公告)号：US09897635B2
公开(公告)日：2018-02-20
申请号：US15244368
申请日：2016-08-23
Applicant: NXP B.V.
Inventor： Edwin Schapendonk
CPC classification number: G01R27/02 , G01R17/105 , G01R19/25 , H03M1/46 , H03M1/742 , H03M3/00 , H03M3/04 , H03M3/458
Abstract: A sensor circuit incorporates an analog to digital converter for providing a digital signal derived from sensing elements connected in a bridge configuration. The sensor circuit comprises first and second paths comprising respective first and second sensing elements connected between first and second supply lines; an analog to digital converter having a differential input connected to receive a differential voltage signal (Vinp−Vinn) between the first and second sensing elements and an output for providing a digital output signal (Dout) representing a difference between the first and second sensing elements, the analog to digital converter comprising: current sources connected between the first and second supply lines, each current source being switchably connected to either the first or second sensing elements; and control logic configured to selectively switch current from each of the current sources to either the first path or the second path in dependence on the differential voltage signal.
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公开(公告)号：US20240356543A1
公开(公告)日：2024-10-24
申请号：US18332522
申请日：2023-06-09
Applicant: NXP B.V.
Inventor： Henricus Cornelis Johannes Büthker , Jyotirmoy Ghosh , Piotr Gibas , Edwin Schapendonk , Neha Goel , Namith Vishnu N
CPC classification number: H03K17/223 , H03K3/037
Abstract: One example discloses a power on reset (POR) circuit, wherein a first circuit is configured to un-couple a power supply input from a resistor divider when the voltage on a second end of the capacitor is above a first circuit threshold; a second circuit configured to couple the second end of the capacitor to the power supply input when a voltage on at least one tap point of the resistor divider is above a second circuit threshold; wherein the comparator is coupled to at least one of the tap points, the reference potential, and a POR output; and wherein the comparator is configured to ramp-up a POR signal on the POR output when a voltage on the at least one of the tap points is greater than the comparator threshold.
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公开(公告)号：US11545967B1
公开(公告)日：2023-01-03
申请号：US17446264
申请日：2021-08-27
Applicant: NXP B.V.
Inventor： Edwin Schapendonk , Wouter van der Heijden , Oswald Moonen , Henri Verhoeven , Ton van Deursen
Abstract: An integrated circuit (IC) includes an input/output (I/O) circuitry with a first circuitry section including I/O pins and a second circuitry section including I/O pins. The first and second circuitry sections are mutually exclusive sections of the I/O ring. The first circuitry section includes a first I/O pin configured to receive an input voltage from a first energy source and a second I/O pin connectable to an external startup capacitor. A startup circuit is coupled to the first I/O pin and the second I/O pin. Upon receiving the input voltage from the first energy source, the startup circuit enters a during the startup phase and isolates the first circuitry section from the second circuitry section, and provides charge to the external startup capacitor. In response to achieving a predetermined minimum charge on the external startup capacitor, the first circuitry section is connected to the second circuitry section, and the startup phase ends and the IC transitions to a functional mode of operation.
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公开(公告)号：US10816363B2
公开(公告)日：2020-10-27
申请号：US15906125
申请日：2018-02-27
Applicant: NXP B.V.
Inventor： Jaap Ruigrok , Edwin Schapendonk , Stephan Marauska , Dennis Helmboldt , Marijn Nicolaas van Dongen
Abstract: A system for determining angular position includes a magnet having at least four poles and an axis of rotation, wherein the magnet produces a magnetic field. A first magnetic field sensor produces a first output signal and a second magnetic field sensor produces a second output signal in response to the magnetic field. The magnetic field sensors are operated in a saturation mode in which the magnetic field sensors are largely insensitive to the field strength of the magnetic field. Thus, the first output signal is indicative of a first direction of the magnetic field and the second output signal is indicative of a second direction of the magnetic field. Methodology performed by a processing circuit entails combining the first and second output signals to obtain a rotation angle value of the magnet in which angular error from a stray magnetic field is at least partially canceled.
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15.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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Patent Agency Ranking
16.发明授权公开(公告)号：US10509082B2
公开(公告)日：2019-12-17
申请号：US15891512
申请日：2018-02-08
Applicant: NXP B.V.
Inventor： Jan Przytarski , Jörg Kock , Stephan Marauska , Edwin Schapendonk
IPC: G01B7/15 , G01B7/30 , H01L43/08 , G01R33/09 , B82Y10/00 , B82Y25/00 , G01D5/14 , G01D5/16 , G01D5/12
Abstract: A system includes first and second magnetic sense elements for producing first and second output signals, respectively, in response to an external magnetic field along a sensing axis parallel to a plane of the first sense element, a magnetization direction of the second element being rotated in the plane relative to a magnetization direction of the first element. The second output signal differs from the first output signal in dependency to a magnetic interference field along a non-sensing axis of the first magnetic field. A processing circuit, receives the first and second output signals, identifies from a relationship between the first and second output signals an influence of the magnetic interference field on the first output signal, and applies a correction factor to the first output signal to produce a resultant output signal in which the influence of the magnetic interference field is substantially removed.
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公开(公告)号：US20190301893A1
公开(公告)日：2019-10-03
申请号：US15941216
申请日：2018-03-30
Applicant: NXP B.V.
Inventor： Jaap Ruigrok , Edwin Schapendonk , Marijn Nicolaas van Dongen
IPC: G01D5/16
Abstract: A system for determining angular position includes a dipole magnet having an axis of rotation, wherein the dipole magnet produces a magnetic field. A first magnetic field sensor produces a first output signal and a second magnetic field sensor produces a second output signal in response to the magnetic field. The magnetic field sensors are operated in a saturation mode in which the magnetic field sensors are largely insensitive to the field strength of the magnetic field. Thus, the first output signal is indicative of a first direction of the magnetic field and the second output signal is indicative of a second direction of the magnetic field. Methodology performed by a processing circuit entails combining the first and second output signals to obtain a rotation angle value of the magnet in which angular error from a stray magnetic field is substantially cancelled.
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公开(公告)号：US20190178684A1
公开(公告)日：2019-06-13
申请号：US15836975
申请日：2017-12-11
Applicant: NXP B.V.
Inventor： Stephan Marauska , Jan Przytarski , Jörg Kock , Edwin Schapendonk
IPC: G01D5/244
CPC classification number: G01D5/2448 , G01R33/0005 , G01R33/0017 , G01R33/0029 , G01R33/025 , G01R33/091 , G01R33/093 , G01R33/096 , G01R33/098
Abstract: A system includes a magnetic sense element for detecting an external magnetic field along a sensing axis and a magnetic field source proximate the magnetic sense element for providing an auxiliary magnetic field along the sensing axis. The magnetic sense element produces a first output signal having a magnetic field signal component, responsive to the external magnetic field, that is modulated by an auxiliary magnetic field signal component responsive to the auxiliary magnetic field. A processing circuit identifies from the first output signal an influence of a magnetic interference field on the auxiliary magnetic field signal component, the magnetic interference field being directed along a non-sensing axis of the magnetic sense element, and applies a correction factor to the magnetic field signal component to produce a second output signal in which the influence of the magnetic interference field is substantially removed.
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公开(公告)号：US12034361B2
公开(公告)日：2024-07-09
申请号：US17658342
申请日：2022-04-07
Applicant: NXP B.V.
Inventor： Wouter van der Heijden , Edwin Schapendonk , Henricus Cornelis Johannes Buthker , Henri Verhoeven , Oswald Moonen , Ton van Deursen
CPC classification number: H02M1/0032 , H02M3/155
Abstract: A controller for a DC-DC converter that includes an inductor. The DC-DC converter has three phases of operation: a first phase, in which an input voltage charges the inductor; a second phase, in which the inductor discharges to a load; and a third phase, in which the inductor is disconnected from the load and in which the input voltage does not charge the inductor. The controller is configured to set a control-factor based on the input voltage of the DC-DC converter, and set the duration of the third phase based on the control-factor and the sum of the duration of the first phase and the second phase.
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公开(公告)号：US11750205B1
公开(公告)日：2023-09-05
申请号：US17717386
申请日：2022-04-11
Applicant: NXP B.V.
Inventor： Edwin Schapendonk , Costantino Ligouras , Harry Neuteboom , Sergio Andrés Rueda Gómez
CPC classification number: H03M1/0663 , H03M1/0614 , H03M1/447
Abstract: A method for digital-to-analog signal conversion with distributed reconstructive filtering includes receiving a digital code synchronous to a clock signal having a first frequency, determining next states of a plurality of digital-to-analog current elements based on the digital code, combining a plurality of currents to generate an output current, and generating the plurality of currents. Each of the plurality of currents is based on a corresponding control signal of a plurality of control signals. The method includes generating the plurality of control signals based on the next states of the plurality of digital-to-analog current elements. Each of the plurality of control signals selects a first voltage level, a second voltage level, or a transitioning voltage level for use by a corresponding digital-to-analog current element. The transitioning voltage level linearly transitions from the first voltage level to the second voltage level over a predetermined number of periods of the clock signal.
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