公开(公告)号：US20230045209A1

公开(公告)日：2023-02-09

申请号：US17808600

申请日：2022-06-24

Applicant: Microchip Technology Incorporated

Inventor： Ganesh Shaga

IPC: G01B7/30 ,  G01D5/20

Abstract: Examples disclosed herein relate generally to inductive angular-position sensors. An example apparatus may include a support structure, a first inductive angular-position sensor, a second inductive angular-position sensor, and a shield. The first inductive angular-position sensor may include a respective first sense coil arranged at a first portion of the support structure. The respective first sense coil may at least partially circumscribe an axis. The second inductive angular-position sensor may include a respective first sense coil arranged opposite the first sense coil of the first inductive angular-position sensor at a second portion of the support structure. The first sense coil of the first inductive angular-position sensor may at least partially circumscribe the axis. The shield may be arranged between the first sense coil of the first inductive angular-position sensor and the first sense coil of the second inductive angular-position sensor.

公开(公告)号：US12111188B2

公开(公告)日：2024-10-08

申请号：US17648743

申请日：2022-01-24

Applicant: Microchip Technology Incorporated

Inventor： Ganesh Shaga ,  Surendra Akkina ,  Sudheer Puttapudi

IPC: G01D5/22 ,  G01D5/20

CPC classification number: G01D5/2275 ,  G01D5/204 ,  G01D2205/77

Abstract: An apparatus for inductive linear-position sensing is disclosed. An apparatus may include a support structure and an electrically conductive material defining a continuous path for electrical current to flow between a first location and a second location. The continuous path may include: a first path portion defining a first spiraling path for the electrical current to flow in a clockwise direction around a first axis; a second path portion laterally spaced from the first path portion and defining a second spiraling path for the electrical current to flow in a counter-clockwise direction around a second axis; a first coupling portion coupling an inner portion of the first path portion to an inner portion of the second path portion; and a second coupling portion coupling an outer portion of the second path portion to an outer portion of the first path portion. Related systems, devices, and methods are also disclosed.

公开(公告)号：US20240230308A9

公开(公告)日：2024-07-11

申请号：US18490039

申请日：2023-10-19

Applicant: Microchip Technology Incorporated

Inventor： Ganesh Shaga ,  Kevin Mark Smith ,  Hwangsoo Choi ,  Surendra Akkina ,  Sudheer Puttapudi

IPC: G01B7/30 ,  G01D5/20

CPC classification number: G01B7/30 ,  G01D5/20

Abstract: An apparatus comprises a target to rotate about an axis; an excitation coil to carry an excitation signal; and a first sense coil to carry a sense signal induced by the excitation signal. The first sense coil comprises two or more lobes in one or more planes that are perpendicular to the axis. The two or more lobes comprise a first lobe at a first position relative to the axis and a second lobe at a second position relative to the axis. The second position is substantially the same radial distance from the axis as the first position is from the axis. The second position is at an angular distance of Θ from the first position, where Θ=180°±α/2, and α is a measurement range for angular-position sensing (e.g., α=60°) within a range of 50% to 150% of α.

公开(公告)号：US12031817B2

公开(公告)日：2024-07-09

申请号：US17808600

申请日：2022-06-24

Applicant: Microchip Technology Incorporated

Inventor： Ganesh Shaga

IPC: G01B7/30 ,  G01D5/20

CPC classification number: G01B7/30 ,  G01D5/20

Abstract: Examples disclosed herein relate generally to inductive angular-position sensors. An example apparatus may include a support structure, a first inductive angular-position sensor, a second inductive angular-position sensor, and a shield. The first inductive angular-position sensor may include a respective first sense coil arranged at a first portion of the support structure. The respective first sense coil may at least partially circumscribe an axis. The second inductive angular-position sensor may include a respective first sense coil arranged opposite the first sense coil of the first inductive angular-position sensor at a second portion of the support structure. The first sense coil of the first inductive angular-position sensor may at least partially circumscribe the axis. The shield may be arranged between the first sense coil of the first inductive angular-position sensor and the first sense coil of the second inductive angular-position sensor.

公开(公告)号：US20220307868A1

公开(公告)日：2022-09-29

申请号：US17303675

申请日：2021-06-04

Applicant: Microchip Technology Incorporated

Inventor： Ganesh Shaga ,  Sudheer Puttapudi ,  Surendra Akkina

IPC: G01D5/20

Abstract: An apparatus for inductive rotational-position sensing is disclosed. An apparatus may include an electrically conductive material defining a continuous path for electrical current to flow between a first and a second location. The continuous path may include a first path portion, defined as a generally clockwise path for the electrical current to flow around a geometric center of the continuous path, and a second path portion, defined as a generally counter-clockwise path for the electrical current to flow around the geometric center. The continuous path may also include a radial-direction-reversal region at which one of the first path portion or the second path portion changes from being defined as a generally outward path for the electrical current to flow away from the geometric center to being defined as a generally inward path for the electrical current to flow toward the geometric center. Related systems, devices, and methods are also disclosed.