US 11,715,589 B2
Inductive filtering device and electrical architecture implementing the inductive filtering device
Eric Ravindranath Dubois, Chatou (FR); Hocine Kherbouchi, Chatou (FR); Frédéric Lacaux, Chatou (FR); Damian Andrade, Chatou (FR); and Stéphane Guguen, Chatou (FR)
Assigned to THALES, Courbevoie (FR)
Filed by THALES, Courbevoie (FR)
Filed on Apr. 30, 2020, as Appl. No. 16/863,851.
Claims priority of application No. 1904575 (FR), filed on May 2, 2019.
Prior Publication US 2020/0350109 A1, Nov. 5, 2020
Int. Cl. H01F 27/24 (2006.01); H01F 27/28 (2006.01); H03H 7/01 (2006.01); H02M 5/458 (2006.01); H03H 7/42 (2006.01); H03H 1/00 (2006.01)
CPC H01F 27/24 (2013.01) [H01F 27/28 (2013.01); H02M 5/458 (2013.01); H03H 7/01 (2013.01); H03H 7/427 (2013.01); H03H 1/0007 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An inductive filtering device comprising a plurality of grouped electrical conductors, each intended to carry a different voltage, and at least two toric magnetic cores, each formed around a central void, the at least two toric magnetic cores having different magnetic lengths, the plurality of grouped electrical conductors being wound together around the at least two toric magnetic cores by passing through the central voids of the at least two toric magnetic cores, wherein the at least two toric magnetic cores are formed in different materials, the material of the magnetic core having the shortest magnetic length exhibiting a maximum relative magnetic permeability lower than or equal to 3000 and lower than that of the material of the magnetic core having the longest magnetic length; wherein the plurality of grouped electrical conductors together form at least one turn wound around the at least two toric magnetic cores and at least one other turn wound around the magnetic core having the shortest magnetic length without being wound around the other of the at least two toric magnetic cores.