公开(公告)号：US20220329150A1

公开(公告)日：2022-10-13

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

IPC: H02M3/04

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.

公开(公告)号：US11460522B2

公开(公告)日：2022-10-04

申请号：US17032266

申请日：2020-09-25

Applicant: NXP B.V.

Inventor： Edwin Schapendonk ,  Hendrikus van Iersel ,  Maciej Skrobacki

IPC: G01R1/30 ,  G01R33/09 ,  G01R33/00

Abstract: A resistive sensor system includes resistive sensor pairs formed of first and second sensors of opposite sensitivity directions to a measured property. Each resistive sensor pair includes one of the first sensors having a first terminal and a second terminal, and one of the second sensors having a third terminal and a fourth terminal. The fourth terminal is coupled to the second terminal of the first sensor. The system further includes multiple noninverting switch elements, each having a noninverting output coupled to the first terminal of one the first sensors, and multiple inverting switch elements, each having an inverting output coupled to the third terminal of one of the second sensors. For each resistive sensor pair, the noninverting and inverting switch elements receive a switch signal for controlling the noninverting and inverting switch elements such that the first and second sensors are biased in opposition to one another.

公开(公告)号：US20220099762A1

公开(公告)日：2022-03-31

申请号：US17032266

申请日：2020-09-25

Applicant: NXP B.V.

Inventor： Edwin Schapendonk ,  Hendrikus van Iersel ,  Maciej Skrobacki

IPC: G01R33/09 ,  G01R33/00

Abstract: A resistive sensor system includes resistive sensor pairs formed of first and second sensors of opposite sensitivity directions to a measured property. Each resistive sensor pair includes one of the first sensors having a first terminal and a second terminal, and one of the second sensors having a third terminal and a fourth terminal. The fourth terminal is coupled to the second terminal of the first sensor. The system further includes multiple noninverting switch elements, each having a noninverting output coupled to the first terminal of one the first sensors, and multiple inverting switch elements, each having an inverting output coupled to the third terminal of one of the second sensors. For each resistive sensor pair, the noninverting and inverting switch elements receive a switch signal for controlling the noninverting and inverting switch elements such that the first and second sensors are biased in opposition to one another.

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.

公开(公告)号：US10705125B1

公开(公告)日：2020-07-07

申请号：US16585237

申请日：2019-09-27

Applicant: NXP B.V.

Inventor： Edwin Schapendonk ,  Marijn Nicolaas van Dongen ,  Maciej Skrobacki ,  Wouter van der Heijden ,  Petrus Antonius Thomas Marinus Vermeeren

IPC: G01R19/25 ,  G05F1/46

Abstract: An integrated circuit includes a load circuit having multiple functional modules, a first voltage regulator configured to provide a supply voltage to the multiple functional modules, and a supply current monitoring circuit including a second voltage regulator and a current monitor, the second voltage regulator being configured to provide a test supply voltage. A switch matrix is interconnected between the first voltage regulator, the supply current monitoring circuit, and the functional modules. Each of the functional modules in successive order is a module under test, and the switch matrix is configured to disconnect the first voltage regulator from the module under test and connect the supply current monitoring circuit to the module under test such that the second voltage regulator provides the test supply voltage to the module under test and the current monitor measures a supply current of the module under test in response to the test supply voltage.

公开(公告)号：US10591320B2

公开(公告)日：2020-03-17

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 ,  G01R33/025 ,  G01R33/09 ,  G01R33/00

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.

公开(公告)号：US20170131333A1

公开(公告)日：2017-05-11

申请号：US15244368

申请日：2016-08-23

Applicant: NXP B.V.

Inventor： Edwin Schapendonk

IPC: G01R27/02 ,  H03M3/00

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 analogue 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 analogue 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 analogue 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.