US 11,680,826 B2
Inductive position sensor for electronic throttle control
Andreas Buchinger, Waidhofen/Ybbs (AT); Rudolf Pichler, Stallhofen (AT); Harald Hartl, Graz (AT); and Bence Gombor, Graz (AT)
Assigned to Integrated Device Technology, Inc., San Jose, CA (US)
Filed by Integrated Device Technology, Inc., San Jose, CA (US)
Filed on Nov. 21, 2019, as Appl. No. 16/691,471.
Claims priority of provisional application 62/771,544, filed on Nov. 26, 2018.
Prior Publication US 2020/0166377 A1, May 28, 2020
Int. Cl. G01D 5/20 (2006.01); H05K 1/14 (2006.01); H05K 3/30 (2006.01); H05K 3/34 (2006.01); B62K 11/14 (2006.01); H05K 3/36 (2006.01)
CPC G01D 5/2053 (2013.01) [B62K 11/14 (2013.01); H05K 3/30 (2013.01); H05K 3/341 (2013.01); H05K 3/368 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of providing a throttle control, comprising:
positioning a plurality of circuit boards around a shaft such that the shaft rotates relative to the plurality of circuit boards, each of the plurality of circuit boards including an inductive position sensor having a transmission coil, sensor coils that include a sine-wave coil and a cosine-wave coil, and control circuitry that drives the transmission coil and receives signals from the sensor coils; and
providing one or more conductive targets mounted to the shaft and configured to be rotate over the plurality of circuit boards as the shaft is rotated relative to the plurality of circuit boards, positioned proximate the sensor coils of the plurality of circuit boards,
wherein the plurality of circuit boards are mounted concentrically around the shaft in one or more of a side-by-side configuration within a circuit around an annulus of the shaft and a stack configuration where the plurality of circuit boards occupy a same sector of the annulus around the shaft, and
wherein the position of the target is determined by the control circuitry as the shaft is rotated to determine the position of the shaft.