US 11,948,728 B2
Biorthogonal windings on transformer and common mode choke for network port
Jianquan Lou, Shanghai (CN); Xiaoxia Zhou, Shanghai (CN); Hailong Zhang, Shanghai (CN); Yingchun Shu, Shanghai (CN); and Alpesh U. Bhobe, Sunnyvale, CA (US)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed on Mar. 4, 2021, as Appl. No. 17/192,523.
Application 17/192,523 is a division of application No. 15/818,950, filed on Nov. 21, 2017, granted, now 10,971,299.
Prior Publication US 2021/0193377 A1, Jun. 24, 2021
Int. Cl. H01F 27/28 (2006.01); H01F 27/02 (2006.01); H01F 27/24 (2006.01); H01F 27/29 (2006.01); H01F 27/34 (2006.01); H01R 13/719 (2011.01); H01R 24/64 (2011.01); H01F 17/06 (2006.01); H01R 13/6461 (2011.01); H01R 13/66 (2006.01); H01R 25/00 (2006.01); H01R 107/00 (2006.01)
CPC H01F 27/34 (2013.01) [H01F 27/027 (2013.01); H01F 27/24 (2013.01); H01F 27/28 (2013.01); H01F 27/29 (2013.01); H01R 13/719 (2013.01); H01R 24/64 (2013.01); H01F 17/062 (2013.01); H01F 27/2895 (2013.01); H01R 13/6461 (2013.01); H01R 13/6633 (2013.01); H01R 25/006 (2013.01); H01R 2107/00 (2013.01); H01R 2201/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a plurality of transformers; and
a plurality of common mode chokes, each of the transformers and the common mode chokes comprising a magnetic core and windings wound around the magnetic core at generally opposite sides thereof such that the windings contact an inner side and an outer side of the magnetic core;
wherein said plurality of transformers and said plurality of common mode chokes are arranged in an array with the windings on each magnetic core positioned offset by approximately 90 degrees from a position of the windings of adjacent magnetic cores in a same plane of the array to reduce crosstalk and improve common mode noise rejection, wherein the apparatus comprises a LAN (Local Area Network) magnetics module, and
wherein the magnetic core comprises a single pair of grooves disposed on opposing sides to retain the windings in their offset position relative to the windings on the adjacent magnetic cores in the array.