EP0782154A4 - Flat transformer - Google Patents

Flat transformer

Info

Publication number
EP0782154A4
EP0782154A4 EP96917657A EP96917657A EP0782154A4 EP 0782154 A4 EP0782154 A4 EP 0782154A4 EP 96917657 A EP96917657 A EP 96917657A EP 96917657 A EP96917657 A EP 96917657A EP 0782154 A4 EP0782154 A4 EP 0782154A4
Authority
EP
European Patent Office
Prior art keywords
flat transformer
transformer
flat
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.)
Withdrawn
Application number
EP96917657A
Other languages
German (de)
French (fr)
Other versions
EP0782154A1 (en
Inventor
Norihiro Asada
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.)
Nihon Shingo KK
Original Assignee
Nihon Shingo KK
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 Nihon Shingo KK filed Critical Nihon Shingo KK
Publication of EP0782154A1 publication Critical patent/EP0782154A1/en
Publication of EP0782154A4 publication Critical patent/EP0782154A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances
    • H01F17/0013—Printed inductances with stacked layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • 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
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/10—Single-phase transformers
    • 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
    • H01F2027/2809—Printed windings on stacked layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP96917657A 1995-06-13 1996-06-12 Flat transformer Withdrawn EP0782154A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP5585195 1995-06-13
JP75851/95 1995-06-13
PCT/JP1996/001597 WO1996042095A1 (en) 1995-06-13 1996-06-12 Flat transformer

Publications (2)

Publication Number Publication Date
EP0782154A1 EP0782154A1 (en) 1997-07-02
EP0782154A4 true EP0782154A4 (en) 1999-08-11

Family

ID=13010557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96917657A Withdrawn EP0782154A4 (en) 1995-06-13 1996-06-12 Flat transformer

Country Status (2)

Country Link
EP (1) EP0782154A4 (en)
WO (1) WO1996042095A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3615024B2 (en) * 1997-08-04 2005-01-26 株式会社村田製作所 Coil parts
TW388889B (en) * 1997-12-17 2000-05-01 Koninkl Philips Electronics Nv Planar transformer
DE19834615A1 (en) * 1998-07-31 2000-02-03 Thomson Brandt Gmbh Compact planar transformer for high frequency switched mode power supplies
DE19805914A1 (en) * 1998-02-13 1999-08-19 Thomson Brandt Gmbh Compact planar transformer for high frequency switched mode power supplies
TW410353B (en) * 1998-02-13 2000-11-01 Thomson Brandt Gmbh Transformer
FR2797089B1 (en) * 1999-07-29 2002-09-20 Cit Alcatel METHOD FOR OBTAINING A MODULE INCLUDING INDUCTIVE COILING AND CORRESPONDING MODULE
JP3620415B2 (en) * 2000-06-30 2005-02-16 株式会社村田製作所 Isolated converter
DE10217580A1 (en) * 2002-04-19 2003-11-06 Eupec Gmbh & Co Kg Power semiconductor module has element mounted on metal layers formed on a insulating substrate that is mounted on a heat sink base
DE102006022785A1 (en) * 2006-05-16 2007-11-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Inductive component and method for producing an inductive component
US7352270B1 (en) 2006-10-27 2008-04-01 Itt Manufacturing Enterprises, Inc. Printed circuit board with magnetic assembly
WO2008132645A1 (en) 2007-04-26 2008-11-06 Philips Intellectual Property & Standards Gmbh Planar transformer with boards
JP5076725B2 (en) * 2007-08-13 2012-11-21 富士電機株式会社 Insulation transformer and power converter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262857A1 (en) * 1974-03-01 1975-09-26 Siemens Ag Shell core transformer with central core piece - has specified core piece configuration corresponding to shell slots
JPS6175510A (en) * 1984-09-21 1986-04-17 Kangiyou Denki Kiki Kk Small sized transformer
GB2252208A (en) * 1991-01-24 1992-07-29 Burr Brown Corp Hybrid integrated circuit planar transformer
JPH0613251A (en) * 1992-06-29 1994-01-21 Tokin Corp Inductance device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63224209A (en) * 1987-03-12 1988-09-19 Fuji Electric Co Ltd Coil for core
JPH03183106A (en) * 1989-12-12 1991-08-09 Sanken Electric Co Ltd Printed wiring board
JPH04137602A (en) * 1990-09-28 1992-05-12 Toshiba Lighting & Technol Corp Chip coil
JPH05275239A (en) * 1992-03-24 1993-10-22 Murata Mfg Co Ltd Laminated coil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262857A1 (en) * 1974-03-01 1975-09-26 Siemens Ag Shell core transformer with central core piece - has specified core piece configuration corresponding to shell slots
JPS6175510A (en) * 1984-09-21 1986-04-17 Kangiyou Denki Kiki Kk Small sized transformer
GB2252208A (en) * 1991-01-24 1992-07-29 Burr Brown Corp Hybrid integrated circuit planar transformer
JPH0613251A (en) * 1992-06-29 1994-01-21 Tokin Corp Inductance device

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 244 (E - 430) 22 August 1986 (1986-08-22) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 210 (E - 1537) 14 April 1994 (1994-04-14) *
See also references of WO9642095A1 *

Also Published As

Publication number Publication date
EP0782154A1 (en) 1997-07-02
WO1996042095A1 (en) 1996-12-27

Similar Documents

Publication Publication Date Title
ZA9810952B (en) Transformer
EP0782154A4 (en) Flat transformer
EP0766273A3 (en) Transformer structure
GB9611263D0 (en) Inductor
PL327469A1 (en) High-frequency transformer
GB2298521B (en) Flyback transformers
CA78500S (en) Transformer housing
GB9604134D0 (en) Flyback transformer
EP0844626A4 (en) Transformer
AP9600802A0 (en) Libricant
LT95019A (en) Transformer
GB2300077B (en) Transformers
EP0766274A3 (en) Transformer structure
LT95094A (en) Transformer
GB2331854A9 (en) Transformer
ZA97601B (en) Transformer
GB9500344D0 (en) Softicks
CA76097S (en) Can
AU6013096A (en) Transformer
GB9420933D0 (en) Transformer means
PL309572A1 (en) Transformer station
PL320354A1 (en) Transformer
AU133353S (en) Transformer
AU134685S (en) Transformer
HU9303528D0 (en) Transformer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19970430

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

A4 Supplementary search report drawn up and despatched

Effective date: 19990624

AK Designated contracting states

Kind code of ref document: A4

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 20020813

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20030225