公开(公告)号：US20240133669A1

公开(公告)日：2024-04-25

申请号：US18490039

申请日：2023-10-18

Applicant: Microchip Technology Incorporated

Inventor： Ganesh Shaga ,  Kevin Mark Smith ,  Hwangsoo Choi ,  Surendra Akkina ,  Sudhneer 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.