公开(公告)号：JPH10214725A

公开(公告)日：1998-08-11

申请号：JP34986697

申请日：1997-12-19

Applicant: LUCENT TECHNOLOGIES INC

Inventor： JIN SUNGHO ,  NEMCHIK JOSEPH MICHAEL ,  VAN DOVER ROBERT BRUCE ,  ZHU WEI

IPC: H01F17/00 ,  H01F3/10 ,  H01F17/04 ,  H01F19/04 ,  H01F19/06 ,  H01F38/02

Abstract: PROBLEM TO BE SOLVED: To provide a noise limiter conversion equipment and manufacturing method of the same having a saturation area to suppress an entering noise as well as a noise in a communication system and an internal noise. SOLUTION: This equipment has a conversion device 10 having a saturation area to suppress an entering noise and the other noise. The converter has a magnetic core 28, an input coil 32, and an output coil 34 formed, so that an output signal generated by magnetic coupling through the magnetic core between an output and output coil is based on an amplitude of the input signal. The magnetic core 28 has a saturation area 42 to suppress the output signal regardless of the amplitude of the input signal if the saturation area once reaches a saturation magnetization state. The saturation area 42 has a reduced saturation magnetization level caused by the area limited by the shape of the magnetic core 28 or the modified magnetically equivalent area having the same characteristic as the area limited by the shape.

公开(公告)号：DE69709043T2

公开(公告)日：2002-08-22

申请号：DE69709043

申请日：1997-11-11

Applicant: LUCENT TECHNOLOGIES INC

Inventor： JIN SUNGHO ,  VAN DOVER ROBERT BRUCE ,  NEMCHIK JOSEPH MICHAEL ,  ZHU WEI

IPC: H01F17/00 ,  H01F3/10 ,  H01F17/04 ,  H01F19/04 ,  H01F19/06 ,  H01F38/02

Abstract: Embodiments of the invention include a transformer device (10) having a saturation region for limiting ingress noise and other noise. The transformer comprises a magnetic core (28), an input coil (32) and an output coil (34) arranged so that the output signal caused by the magnetic linkage between the input and output coils through the magnetic core is based on the magnitude of the input signal. According to an embodiment of the invention, the magnetic core includes a saturation region (42) that limits the output signal regardless of the magnitude of the input signal once the saturation region reaches its saturation magnetization state. The saturation region comprises a reduced saturation magnetization level caused by a geometrically constricted region of the magnetic core or, alternatively, by a modified, magnetic-equivalent region having properties similar to a geometrically constricted region.

公开(公告)号：DE69709043D1

公开(公告)日：2002-01-24

申请号：DE69709043

申请日：1997-11-11

Applicant: LUCENT TECHNOLOGIES INC

Inventor： JIN SUNGHO ,  VAN DOVER ROBERT BRUCE ,  NEMCHIK JOSEPH MICHAEL ,  ZHU WEI

IPC: H01F17/00 ,  H01F3/10 ,  H01F17/04 ,  H01F19/04 ,  H01F19/06 ,  H01F38/02

Abstract: Embodiments of the invention include a transformer device (10) having a saturation region for limiting ingress noise and other noise. The transformer comprises a magnetic core (28), an input coil (32) and an output coil (34) arranged so that the output signal caused by the magnetic linkage between the input and output coils through the magnetic core is based on the magnitude of the input signal. According to an embodiment of the invention, the magnetic core includes a saturation region (42) that limits the output signal regardless of the magnitude of the input signal once the saturation region reaches its saturation magnetization state. The saturation region comprises a reduced saturation magnetization level caused by a geometrically constricted region of the magnetic core or, alternatively, by a modified, magnetic-equivalent region having properties similar to a geometrically constricted region.