公开(公告)号：EP0291602A1

公开(公告)日：1988-11-23

申请号：EP87308516.1

申请日：1987-09-25

Applicant: STANDEX INTERNATIONAL CORPORATION

Inventor： Chamberlin, Edward R.

IPC: H01F15/10

CPC classification number: H05K3/3442 ,  H01F27/292 ,  H05K2201/09045 ,  H05K2201/10568 ,  H05K2201/10636 ,  Y02P70/611 ,  Y02P70/613

Abstract: A miniature inductor having strips of printed circuitboard material forming contact elements for surface mounting the inductor to a printed circuitboard.

Abstract translation: 具有印刷电路板材料条的微型电感器形成用于将电感器表面安装到印刷电路板的接触元件。

公开(公告)号：EP0167293B1

公开(公告)日：1989-01-04

申请号：EP85303952.7

申请日：1985-06-04

Applicant: STANDEX INTERNATIONAL CORPORATION

Inventor： Chamberlin, Edward R.

IPC: H01F21/08

CPC classification number: H01F21/08 ,  Y10T29/49004 ,  Y10T29/49071 ,  Y10T29/49073

公开(公告)号：EP0291602B1

公开(公告)日：1992-12-30

申请号：EP87308516.1

申请日：1987-09-25

Applicant: STANDEX INTERNATIONAL CORPORATION

Inventor： Chamberlin, Edward R.

IPC: H01F15/10

CPC classification number: H05K3/3442 ,  H01F27/292 ,  H05K2201/09045 ,  H05K2201/10568 ,  H05K2201/10636 ,  Y02P70/611 ,  Y02P70/613

公开(公告)号：EP0167293A1

公开(公告)日：1986-01-08

申请号：EP85303952.7

申请日：1985-06-04

Applicant: STANDEX INTERNATIONAL CORPORATION

Inventor： Chamberlin, Edward R.

IPC: H01F21/08

CPC classification number: H01F21/08 ,  Y10T29/49004 ,  Y10T29/49071 ,  Y10T29/49073

Abstract: A microcoil (10) having a winding (16) on a composite core made up of a portion (11) of substantially magnetic material and a portion (12) of substantially non-magentic material. The winding is split so that a part (17) of the magnetic material core portion is exposed, and a laser is preferably used to remove material from the exposed part of the magnetic core portion preferably forming a groove (21). The inductance of the coil is measured during the removal of the magnetic material, and the inductance of the coil is trimmed to a desired value through the removal of an appropriate amount of magnetic material. The non-magnetic core portion serves as a support structure for the portions of the winding on the core even if a substantial portion of the magnetic material is removed.