GB2456132B - Low-profile planar transformer - Google Patents

Low-profile planar transformer

Info

Publication number
GB2456132B
GB2456132B GB0725329A GB0725329A GB2456132B GB 2456132 B GB2456132 B GB 2456132B GB 0725329 A GB0725329 A GB 0725329A GB 0725329 A GB0725329 A GB 0725329A GB 2456132 B GB2456132 B GB 2456132B
Authority
GB
United Kingdom
Prior art keywords
low
planar transformer
profile planar
profile
transformer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB0725329A
Other versions
GB2456132A (en
GB0725329D0 (en
Inventor
Chun-Gheng Cheng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuan Tech
Original Assignee
Kuan Tech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kuan Tech filed Critical Kuan Tech
Priority to GB0725329A priority Critical patent/GB2456132B/en
Publication of GB0725329D0 publication Critical patent/GB0725329D0/en
Publication of GB2456132A publication Critical patent/GB2456132A/en
Application granted granted Critical
Publication of GB2456132B publication Critical patent/GB2456132B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2804—Printed windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2804—Printed windings
    • H01F2027/2814—Printed windings with only part of the coil or of the winding in the printed circuit board, e.g. the remaining coil or winding sections can be made of wires or sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2804—Printed windings
    • H01F2027/2819—Planar transformers with printed windings, e.g. surrounded by two cores and to be mounted on printed circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2847—Sheets; Strips

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
GB0725329A 2007-12-31 2007-12-31 Low-profile planar transformer Expired - Fee Related GB2456132B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0725329A GB2456132B (en) 2007-12-31 2007-12-31 Low-profile planar transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0725329A GB2456132B (en) 2007-12-31 2007-12-31 Low-profile planar transformer

Publications (3)

Publication Number Publication Date
GB0725329D0 GB0725329D0 (en) 2008-02-06
GB2456132A GB2456132A (en) 2009-07-08
GB2456132B true GB2456132B (en) 2009-11-25

Family

ID=39092464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0725329A Expired - Fee Related GB2456132B (en) 2007-12-31 2007-12-31 Low-profile planar transformer

Country Status (1)

Country Link
GB (1) GB2456132B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105914011B (en) * 2016-05-31 2019-01-04 深圳市麦吉瑞科技有限公司 A kind of flat surface transformer
WO2018191875A1 (en) * 2017-04-19 2018-10-25 Cooper Technologies Company High current swing-type inductor and methods of fabrication

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015861A1 (en) * 1990-03-30 1991-10-17 Multisource Technology Corporation Low-profile planar transformer for use in off-line switching power supplies
WO1992022917A1 (en) * 1991-06-11 1992-12-23 Astec International Limited Low profile transformer
EP0933789A2 (en) * 1998-01-30 1999-08-04 R.G.M. S.p.A. Planar transformer
JP2000223320A (en) * 1999-01-28 2000-08-11 Hitachi Ferrite Electronics Ltd Transformer for large current
US20020167388A1 (en) * 2001-05-14 2002-11-14 Hiroshi Usui Transformer
US6522233B1 (en) * 2001-10-09 2003-02-18 Tdk Corporation Coil apparatus
US20040257190A1 (en) * 2001-09-28 2004-12-23 Joachim Peck Planar transformer comprising plug-in secondary windings

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015861A1 (en) * 1990-03-30 1991-10-17 Multisource Technology Corporation Low-profile planar transformer for use in off-line switching power supplies
WO1992022917A1 (en) * 1991-06-11 1992-12-23 Astec International Limited Low profile transformer
EP0933789A2 (en) * 1998-01-30 1999-08-04 R.G.M. S.p.A. Planar transformer
JP2000223320A (en) * 1999-01-28 2000-08-11 Hitachi Ferrite Electronics Ltd Transformer for large current
US20020167388A1 (en) * 2001-05-14 2002-11-14 Hiroshi Usui Transformer
US20040257190A1 (en) * 2001-09-28 2004-12-23 Joachim Peck Planar transformer comprising plug-in secondary windings
US6522233B1 (en) * 2001-10-09 2003-02-18 Tdk Corporation Coil apparatus

Also Published As

Publication number Publication date
GB2456132A (en) 2009-07-08
GB0725329D0 (en) 2008-02-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20111231