公开(公告)号：WO1993000692A1

公开(公告)日：1993-01-07

申请号：PCT/US1992005416

申请日：1992-06-26

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  POLLARD, David, D. ,  BAILEY, Mark, W.

IPC: H01F27/24

CPC classification number: H01F27/245 ,  H01F27/346

Abstract: A multiple phase inductor includes a magnetic core (18) having two end pieces (30 and 32) and a plurality of legs (34, 36 and 38) extending between the end pieces to form flux paths which pass through the end pieces and the legs. Each leg includes a stack of 'I'-shaped laminations which are positioned between the end pieces to form two gaps (46, 48, 50, 56, 54, and 56) in at least one of the flux paths. A coil (12, 14, 16) is wound around each of the legs and all of the coils present substantially the same inductance to an external power circuit. By providing two gaps in each of the legs, localized heating of the turns of the coils is reduced.