公开(公告)号：US20220136869A1

公开(公告)日：2022-05-05

申请号：US17146875

申请日：2021-01-12

Applicant: Microchip Technology Inc.

Inventor： Ganesh Shaga

IPC: G01D5/20 ,  G01B7/30

Abstract: A redundant angular position sensor comprising a first angular position sensor including a first excitation coil, a first sensing coil and a second sensing coil and a second angular position sensor. The second angular position sensor including a second excitation coil, a third sensing coil and a fourth sensing coil. Each of the first, second, third and fourth sensing coils comprising a respective clockwise winding portion and a respective counter-clockwise winding portion. The redundant angular position sensor further comprises a rotatable inductive coupling element positioned in overlying relation to the sensing coils and separated from the sensing coils by a gap, wherein the rotatable inductive coupling element comprises four, substantially evenly radially spaced, sector apertures.

公开(公告)号：US20220011138A1

公开(公告)日：2022-01-13

申请号：US16927553

申请日：2020-07-13

Applicant: Microchip Technology Inc.

Inventor： Ganesh Shaga ,  Kevin Mark Smith, JR. ,  Hwangsoo Choi ,  Sudheer Puttapudi

IPC: G01D5/20

Abstract: An angular position sensor comprising two planar excitation coils forming a substantially circular interior area and two planar sensing coils positioned within a minor sector of the substantially circular interior area. Each of the two planar sensing coils comprises a clockwise winding portion and a counter-clockwise winding portion. The angular position sensor further comprises a substantially circular rotatable inductive coupling element positioned in overlying relation to the two planar sensing coils and separated from the two planar sensing coils by an airgap, wherein the substantially circular rotatable inductive coupling element comprises three, substantially evenly space, sector apertures.

公开(公告)号：US11221236B1

公开(公告)日：2022-01-11

申请号：US16927553

申请日：2020-07-13

Applicant: Microchip Technology Inc.

Inventor： Ganesh Shaga ,  Kevin Mark Smith, Jr. ,  Hwangsoo Choi ,  Sudheer Puttapudi

IPC: G01D5/20

Abstract: An angular position sensor comprising two planar excitation coils forming a substantially circular interior area and two planar sensing coils positioned within a minor sector of the substantially circular interior area. Each of the two planar sensing coils comprises a clockwise winding portion and a counter-clockwise winding portion. The angular position sensor further comprises a substantially circular rotatable inductive coupling element positioned in overlying relation to the two planar sensing coils and separated from the two planar sensing coils by an airgap, wherein the substantially circular rotatable inductive coupling element comprises three, substantially evenly space, sector apertures.

公开(公告)号：US11598654B2

公开(公告)日：2023-03-07

申请号：US17359694

申请日：2021-06-28

Applicant: Microchip Technology Inc.

Inventor： Ganesh Shaga

IPC: G01D5/20 ,  G01P3/488

Abstract: An angular position sensor comprising two annular sensors, one annular sensor for generating a coarse resolution time varying signal in the presence of a rotatable inductive coupling element and the other annular sensor for generating a fine resolution time varying signal in the presence of the rotatable inductive coupling element. The rotatable inductive coupling element comprising a first annular portion comprising at least one annular conductive sector and at least one annular non-conductive sector and a second annular portion comprising at least one annular conductive sectors and at least one annular non-conductive sector, wherein the number of annular conductive sectors of the first annular portion and the second annular portion are different. In particular, the annular conductive sectors of the annular portions may comprise 50% or 75% of the total area of the annular portions.

公开(公告)号：US11656101B2

公开(公告)日：2023-05-23

申请号：US17146875

申请日：2021-01-12

Applicant: Microchip Technology Inc.

Inventor： Ganesh Shaga

IPC: G01D5/20 ,  G01B7/30

CPC classification number: G01D5/2073 ,  G01B7/30

Abstract: A redundant angular position sensor comprising a first angular position sensor including a first excitation coil, a first sensing coil and a second sensing coil and a second angular position sensor. The second angular position sensor including a second excitation coil, a third sensing coil and a fourth sensing coil. Each of the first, second, third and fourth sensing coils comprising a respective clockwise winding portion and a respective counter-clockwise winding portion. The redundant angular position sensor further comprises a rotatable inductive coupling element positioned in overlying relation to the sensing coils and separated from the sensing coils by a gap, wherein the rotatable inductive coupling element comprises four, substantially evenly radially spaced, sector apertures.

公开(公告)号：US20220187335A1

公开(公告)日：2022-06-16

申请号：US17359694

申请日：2021-06-28

Applicant: Microchip Technology Inc.

Inventor： Ganesh Shaga

IPC: G01P3/488 ,  G01D5/20

Abstract: An angular position sensor comprising two annular sensors, one annular sensor for generating a coarse resolution time varying signal in the presence of a rotatable inductive coupling element and the other annular sensor for generating a fine resolution time varying signal in the presence of the rotatable inductive coupling element. The rotatable inductive coupling element comprising a first annular portion comprising at least one annular conductive sector and at least one annular non-conductive sector and a second annular portion comprising at least one annular conductive sectors and at least one annular non-conductive sector, wherein the number of annular conductive sectors of the first annular portion and the second annular portion are different. In particular, the annular conductive sectors of the annular portions may comprise 50% or 75% of the total area of the annular portions.