公开(公告)号：US20200043642A1

公开(公告)日：2020-02-06

申请号：US16598155

申请日：2019-10-10

Applicant: ABB Schweiz AG

Inventor： Bernhard Wunsch ,  Uwe Drofenik ,  Stanislav Skibin ,  Gernot Riedel ,  Ville Samuel Forsstrom

IPC: H01F17/06 ,  H03H7/01 ,  H01F27/28 ,  H01F41/02 ,  H01F41/04

Abstract: A multi-phase inductor includes a core made of a magnetic material; at least two phase windings surrounding the core for inducing a magnetic field in the core, such that a common mode inductance (LCM) is provided for the at least two phase windings; and an adjustment member made of a magnetic material, which adjustment member has at least two legs, which are interconnected with each other at an inner end and which are touching the core at an outer end to provide a differential mode inductance (LDM) for the at least two phase windings; wherein the outer end of each leg of the adjustment member overlays an axial side of the core and/or each leg of the adjustment member has a varying thickness between the inner end and the outer end to adjust the differential mode inductance (LDM).

公开(公告)号：US11636968B2

公开(公告)日：2023-04-25

申请号：US16598155

申请日：2019-10-10

Applicant: ABB Schweiz AG

Inventor： Bernhard Wunsch ,  Uwe Drofenik ,  Stanislav Skibin ,  Gernot Riedel ,  Ville Samuel Forsstrom

IPC: H01F17/06 ,  H01F41/02 ,  H01F41/04 ,  H01F27/28 ,  H03H7/01 ,  H02M1/44

Abstract: A multi-phase inductor includes a core made of a magnetic material; at least two phase windings surrounding the core for inducing a magnetic field in the core, such that a common mode inductance (LCM) is provided for the at least two phase windings; and an adjustment member made of a magnetic material, which adjustment member has at least two legs, which are interconnected with each other at an inner end and which are touching the core at an outer end to provide a differential mode inductance (LDM) for the at least two phase windings; wherein the outer end of each leg of the adjustment member overlays an axial side of the core and/or each leg of the adjustment member has a varying thickness between the inner end and the outer end to adjust the differential mode inductance (LDM).