公开(公告)号：US11967933B2

公开(公告)日：2024-04-23

申请号：US17849484

申请日：2022-06-24

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gebhard Haug ,  Dirk Preikszat

IPC: H04L7/00 ,  H03D11/06 ,  H03L7/099 ,  H04L25/02

CPC classification number: H03D11/06 ,  H03L7/0992 ,  H04L7/0012 ,  H04L25/0268

Abstract: In an example, a system includes circuitry on a first side of an isolation barrier and circuitry on a second side of the isolation barrier, where the isolation barrier is operable to electrically isolate the first side from the second side. The system also includes a trimmed oscillator, a first transmitter, and a first receiver on the first side, the trimmed oscillator coupled to the first transmitter. The system includes a tunable oscillator, a second transmitter, and a second receiver on the second side, the tunable oscillator coupled to the second receiver and the second transmitter. In the system, the first side is configured to transmit a training sequence to the second side, and the second side is configured to tune the tunable oscillator based on the training sequence.

公开(公告)号：US20200003848A1

公开(公告)日：2020-01-02

申请号：US16569741

申请日：2019-09-13

Applicant: Texas Instruments Incorporated

Inventor： Martijn Fridus Snoeij ,  Viola Schaffer ,  Gebhard Haug

IPC: G01R33/022 ,  G01R33/04

Abstract: An integrated fluxgate magnetic gradient sensor includes a common mode sensitive fluxgate magnetometer and a differential mode sensitive fluxgate magnetometer. The common mode sensitive fluxgate magnetometer includes a first core adjacent to a second core. The first and second cores are wrapped by a first excitation wire coil configured to receive an excitation current that affects a differential mode magnetic field. The differential mode sensitive fluxgate magnetometer includes a third core adjacent to the first core and a fourth core adjacent to the second core. The third and fourth cores are wrapped by a second excitation wire coil configured to receive an excitation current that affects a common mode magnetic field.

公开(公告)号：US10983180B2

公开(公告)日：2021-04-20

申请号：US16569741

申请日：2019-09-13

Applicant: Texas Instruments Incorporated

Inventor： Martijn Fridus Snoeij ,  Viola Schaffer ,  Gebhard Haug

IPC: G01R33/022 ,  G01R33/04

Abstract: An integrated fluxgate magnetic gradient sensor includes a common mode sensitive fluxgate magnetometer and a differential mode sensitive fluxgate magnetometer. The common mode sensitive fluxgate magnetometer includes a first core adjacent to a second core. The first and second cores are wrapped by a first excitation wire coil configured to receive an excitation current that affects a differential mode magnetic field. The differential mode sensitive fluxgate magnetometer includes a third core adjacent to the first core and a fourth core adjacent to the second core. The third and fourth cores are wrapped by a second excitation wire coil configured to receive an excitation current that affects a common mode magnetic field.

公开(公告)号：US10459040B2

公开(公告)日：2019-10-29

申请号：US15162776

申请日：2016-05-24

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Martijn Fridus Snoeij ,  Viola Schäffer ,  Gebhard Haug

IPC: G01R33/022 ,  G01R33/04

Abstract: An integrated fluxgate magnetic gradient sensor includes a common mode sensitive fluxgate magnetometer and a differential mode sensitive fluxgate magnetometer. The common mode sensitive fluxgate magnetometer includes a first core adjacent to a second core. The first and second cores are wrapped by a first excitation wire coil configured to receive an excitation current that affects a differential mode magnetic field. The differential mode sensitive fluxgate magnetometer includes a third core adjacent to the first core and a fourth core adjacent to the second core. The third and fourth cores are wrapped by a second excitation wire coil configured to receive an excitation current that affects a common mode magnetic field.