US 12,222,745 B2
Control device comprising a mechanically guided member for enabling a relative movement
Michaël Delbaere, Besançon (FR); and Jean-Daniel Alzingre, Besançon (FR)
Assigned to MOVING MAGNET TECHNOLOGIES, Besançon (FR)
Appl. No. 18/565,705
Filed by Moving Magnet Technologies, Besançon (FR)
PCT Filed Jun. 2, 2022, PCT No. PCT/FR2022/051052
§ 371(c)(1), (2) Date Nov. 30, 2023,
PCT Pub. No. WO2022/254158, PCT Pub. Date Dec. 8, 2022.
Claims priority of application No. 2105801 (FR), filed on Jun. 2, 2021.
Prior Publication US 2024/0143017 A1, May 2, 2024
Int. Cl. G05G 5/03 (2008.04); F16D 63/00 (2006.01); G05G 1/08 (2006.01); G05G 5/04 (2006.01); G05G 5/06 (2006.01); G06F 3/01 (2006.01); G06F 3/0362 (2013.01); H01F 7/02 (2006.01); G06F 3/039 (2013.01)
CPC G05G 5/03 (2013.01) [F16D 63/002 (2013.01); G05G 1/08 (2013.01); G05G 5/04 (2013.01); G05G 5/06 (2013.01); G06F 3/016 (2013.01); G06F 3/0362 (2013.01); H01F 7/02 (2013.01); G05G 2505/00 (2013.01); G06F 3/0393 (2019.05)] 25 Claims
OG exemplary drawing
 
1. A control device, comprising:
at least one permanent magnet;
a mechanically-guided member to allow relative movement between:
a. a first ferromagnetic structure, and
b. a second ferromagnetic structure comprising at least one electric coil, the electric coil modifying the magnetization state of the second ferromagnetic structure along the direction and amplitude of the electric current flowing in the coil;
a position detection means for detecting the relative position of the first and second ferromagnetic, structures; and
a control circuit for controlling the supply of current to the coil varying as a function of the signal delivered by the position detection means.