Rotor for inductive position sensor
AssigneeSemiconductor Components Industries, LLC
InventorJacques Jean BERTIN
Life of this patent
Estimating the term…
Abstract
An inductive position sensor subsystem is disclosed. The inductive position sensor includes a fine rotor located on a first printed circuit board, and a metallic coarse rotor including a metal support to which the first printed circuit board is coupled. The inductive position sensor also includes a fine sensor receiver and a coarse sensor receiver that generate respective pluralities of sensor signals based on the rotation of the fine rotor and the metallic coarse rotor. The fine sensor receiver and the coarse sensor receiver are located on a second printed circuit board separate from the first printed circuit board.
Claims20
An apparatus, comprising:
- a fine rotor located on a first printed circuit board;
- a metallic coarse rotor coupled to the first printed circuit board;
- a fine sensor receiver configured to generate a plurality of fine sensor signals based on a first rotation of the fine rotor, wherein the fine sensor receiver is located on a second printed circuit board separate from the first printed circuit board;
- and
- a coarse sensor receiver configured to generate a plurality of coarse sensor signals based on a second rotation of the metallic coarse rotor, wherein the coarse sensor receiver is located on the second printed circuit board.
A method, comprising:
- generating, by a fine sensor receiver, a plurality of fine sensor signals based on rotating a fine rotor included on a first printed circuit board;
- generating, by a coarse sensor receiver, a plurality of coarse sensor signals based on rotating a metallic coarse rotor coupled to the first printed circuit board;
- and
- generating, by an interface circuit, an output angle value using the plurality of fine sensor signals and the plurality of coarse sensor signals.
An apparatus, comprising:
- a first printed circuit board that includes a fine sensor receiver and a coarse sensor receiver;
- and
- a second printed circuit board that includes:
- a fine coil configured to magnetically couple to the fine sensor receiver;
- and
- a coarse coil configured to magnetically couple to the coarse sensor receiver.
Dependencies are inferred from the claim text.