公开(公告)号：US20210275822A1

公开(公告)日：2021-09-09

申请号：US16328587

申请日：2017-07-18

Applicant: Medtronic, Inc.

Inventor： Jalpa S. Shah ,  Robert W. Hocken, Jr. ,  Joel Sivula ,  Wesley A. Santa

IPC: A61N1/37 ,  G01R33/07 ,  A61N1/36 ,  A61N1/05 ,  A61N1/39

Abstract: Techniques are described for magnetic field detection using a plurality of Hall sensors and chopper-amplifier circuit. Determination that a magnetic field is present from measurement from one of the Hall sensors may trigger confirmation or confirmation and reconfirmation of the presence of the magnetic field from measurements from one or more of the other Hall sensors.

公开(公告)号：US11406830B2

公开(公告)日：2022-08-09

申请号：US16328587

申请日：2017-07-18

Applicant: Medtronic, Inc.

Inventor： Jalpa S. Shah ,  Robert W. Hocken, Jr. ,  Joel Sivula ,  Wesley A. Santa

IPC: A61N1/37 ,  A61N1/05 ,  A61N1/36 ,  A61N1/39 ,  G01R33/07

Abstract: Techniques are described for magnetic field detection using a plurality of Hall sensors and chopper-amplifier circuit. Determination that a magnetic field is present from measurement from one of the Hall sensors may trigger confirmation or confirmation and reconfirmation of the presence of the magnetic field from measurements from one or more of the other Hall sensors.