Patent ID: 11863034
Assignee: LG INNOTEK CO., LTD.
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 6:
7. A motor comprising:
a central shaft;
a sensing magnet including a main magnet and a sub-magnet coupled to the central shaft; and
a substrate disposed above the sensing magnet,
wherein the substrate includes a plurality of first Hall sensors and a plurality of second Hall sensors disposed on a first circumference of which the central shaft is a center, and a plurality of third hall sensors and a plurality of fourth Hall sensors disposed on a second circumference of which the central shaft is the center,
wherein a radius of the second circumference is greater than a radius of the first circumference,
wherein the plurality of first Hall sensors and the plurality of third Hall sensors form a first group,
wherein the plurality of second Hall sensors and the plurality of fourth Hall sensors form a second group,
wherein a distance between two adjacent first Hall sensors of the first group is less than a distance between the first Hall sensor closest to the second group of the first group and the second hall sensor closest to the first group of the second group.