EP1973124B1 - Transformateur planaire indépendant - Google Patents

Transformateur planaire indépendant Download PDF

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Publication number
EP1973124B1
EP1973124B1 EP07005609A EP07005609A EP1973124B1 EP 1973124 B1 EP1973124 B1 EP 1973124B1 EP 07005609 A EP07005609 A EP 07005609A EP 07005609 A EP07005609 A EP 07005609A EP 1973124 B1 EP1973124 B1 EP 1973124B1
Authority
EP
European Patent Office
Prior art keywords
circuit board
magnetic device
printed circuit
main circuit
winding
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.)
Not-in-force
Application number
EP07005609A
Other languages
German (de)
English (en)
Other versions
EP1973124A1 (fr
Inventor
Ming-En Hsu
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.)
ABC Taiwan Electronics Corp
Original Assignee
ABC Taiwan Electronics Corp
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 ABC Taiwan Electronics Corp filed Critical ABC Taiwan Electronics Corp
Priority to AT07005609T priority Critical patent/ATE554487T1/de
Priority to EP07005609A priority patent/EP1973124B1/fr
Publication of EP1973124A1 publication Critical patent/EP1973124A1/fr
Application granted granted Critical
Publication of EP1973124B1 publication Critical patent/EP1973124B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • 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
    • 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
    • H01F27/02—Casings
    • H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
    • 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
    • H01F27/2852—Construction of conductive connections, of leads

Definitions

  • the present invention relates to a high-efficiency independent planar transformer that comprises at least one printed circuit board having a multi-layer structure having at least two layers to form equal or unequal numbers of inductor winding turns, at least two planar copper plates or two printed circuit boards to constitute two respective secondary windings, a pair of up-and-down symmetrical soft ferrite magnetic cores, and several electrically connecting terminals.
  • the magnetic device is widely applied to a power supply, and more particularly to a DC/DC converter (shown in FIG. 1 ).
  • microelectronic circuits are using lower and lower voltage. 5 V and 12 V are no longer dominant power supplies used in microelectronic circuits. 3.3V, 2.5V, 2V, 1.8V, 1.5V, and even 1.2V are becoming standard voltage in many electronic devices. Actually, some next-generation high-speed microprocessors and digital signal processors need 1.0 V as their supply voltage.
  • Two secondary windings comprise at least two planar copper plates (205, 206) or two printed circuit boards (304, 305). Every planar copper plate (205, 206) constitutes one inductor winding turn.
  • the printed circuit boards (304, 305) each have a multi-layer structure having at least two layers to form the inductor winding with at least one turn.
  • these two printed circuit boards (304, 305) that constitute the secondary windings have the same number of inductor winding turns.
  • the independent planar transformer is a part of a DC/DC converter.
  • the magnetic device and the main circuit board can be electrically connected via the terminals (207, 208 or 306, 307).
  • these two windings can be connected to each other in series or in parallel by short-circuit connection with the main circuit board, as shown in FIGS. 11 and 12 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Dc-Dc Converters (AREA)
  • Coils Of Transformers For General Uses (AREA)

Claims (9)

  1. Combinaison d'un dispositif magnétique et d'une plaquette de circuit imprimé principale, ledit dispositif magnétique comprenant :
    au moins une plaquette de circuit imprimé (203, 204, 303) capable de former différents nombres de tours d'enroulements d'inducteur, ladite plaquette de circuit imprimé (203, 204, 303) constituant un enroulement primaire d'un transformateur planaire ;
    au moins deux plaques de cuivre planaires (205, 206) ou deux plaquettes de circuit imprimé (304, 305) pour constituer deux enroulements secondaires respectifs dudit transformateur planaire et
    une pluralité de bornes de sortie (207, 208 ou 306, 307) pour connecter électriquement ledit enroulement primaire dudit transformateur planaire et lesdits enroulements secondaires dudit transformateur planaire,
    ledit dispositif magnétique et ladite plaquette de circuit imprimé principale étant connectés électriquement par lesdites bornes de sortie (207, 208, 306, 307), les différentes structures de connexion de sortie d'enroulement étant formées par la disposition vers le haut d'un côté composant ou d'un côté brasage d'une pièce de ladite plaquette de circuit imprimé qui existe au moins (203, 204, 303) qui constitue ledit enroulement primaire,
    caractérisée en ce que
    ledit dispositif magnétique comprend une ou plusieurs paires de noyaux magnétiques montants et descendants symétriques en ferrite doux de type ER ou RM (201, 301, 302), dans lequel soit deux plaquettes de circuit imprimé (203, 204, 303) qui ont le même nombre de tours d'enroulement d'inducteur sont empilées avec les côtés composants respectifs placés en face l'un de l'autre pour former deux enroulements primaires, lesdits enroulements primaires étant connectés l'un à l'autre en série ou en parallèle au moyen d'une connexion de court-circuit avec ladite plaquette de circuit imprimé principale, soit deux plaquettes de circuit imprimé (203, 204, 303) qui ont différents nombres de tours d'enroulement d'inducteur sont empilées avec des côtés composants respectifs placés l'un en face de l'autre pour former deux enroulements primaires, et lesdits deux enroulements primaires sont connectés l'un à l'autre en série au moyen d'une connexion de court-circuit avec ladite plaquette de circuit imprimé principale.
  2. Combinaison d'un dispositif magnétique et d'une plaquette de circuit imprimé principale selon la revendication 1 dans laquelle ledit enroulement primaire et ledit enroulement secondaire, ledit enroulement primaire et ledit enroulement primaire, ledit enroulement secondaire et ledit enroulement secondaire dudit transformateur planaire sont isolés électriquement respectivement l'un de l'autre par une ou plusieurs couches isolantes.
  3. Combinaison d'un dispositif magnétique et d'une plaquette de circuit imprimé principale selon la revendication 1 dans laquelle deux pièces de ladite plaquette de circuit imprimé qui existe au moins (203, 204, 303, 304, 305) qui ont le même nombre de tours d'enroulement d'inducteur sont empilées en séquence pour constituer deux enroulements primaires en disposant vers le haut leurs côtés composants respectifs, ledit dispositif magnétique et ladite plaquette de circuit imprimé principale étant connectés électriquement par lesdites bornes de sortie (207, 208, 306, 307) et lesdits deux enroulements primaires étant connectés l'un à l'autre en parallèle au moyen de bornes (207, 208, 306, 307) directement sur ledit dispositif magnétique.
  4. Combinaison d'un dispositif magnétique et d'une plaquette de circuit imprimé principale selon la revendication 1 dans laquelle lesdites deux plaques de cuivre planaires (205, 206) qui constituent lesdits deux enroulements secondaires constituent chacune un tour d'enroulement d'inducteur.
  5. Combinaison d'un dispositif magnétique et d'une plaquette de circuit imprimé principale selon la revendication 4 dans laquelle lesdites deux plaques de cuivre planaires (205, 206) sont empilées pour former lesdits deux enroulements secondaires, ledit dispositif magnétique et ladite plaquette de circuit imprimé principale étant connectés électriquement par lesdites bornes de sortie (207, 208, 306, 307), lesdits deux enroulements secondaires étant reliés l'un à l'autre en série ou en parallèle au moyen desdites bornes de sortie (207, 208, 306, 307) ou d'une connexion de court-circuit avec ladite plaquette de circuit imprimé principale.
  6. Combinaison d'un dispositif magnétique et d'une plaquette de circuit imprimé principale selon la revendication 1 dans laquelle lesdites deux plaquettes de circuit imprimé (203, 204, 303, 304, 305) qui constituent lesdits deux enroulements secondaires ont le même nombre de tours d'enroulement d'inducteur.
  7. Combinaison d'un dispositif magnétique et d'une plaquette de circuit imprimé principale selon la revendication 6 dans laquelle deux plaquettes de circuit imprimé (203, 204, 303, 304, 305) qui ont le même nombre de tours d'enroulement d'inducteur sont empilées pour former lesdits deux enroulements secondaires, ledit dispositif magnétique et ladite plaquette de circuit imprimé principale étant connectés électriquement par lesdites bornes de sortie (207, 208, 306, 307) et lesdits deux enroulements secondaires étant reliés l'un à l'autre en série ou en parallèle au moyen desdites bornes de sortie (207, 208, 306, 307) ou d'une connexion de court-circuit avec ladite plaquette de circuit imprimé.
  8. Combinaison d'un dispositif magnétique et d'une plaquette de circuit imprimé principale selon la revendication 1 dans laquelle deux plaques de cuivre planaires (205, 206) ou lesdites deux plaquettes de circuit imprimé (203, 204, 303, 304, 305) qui constituent lesdits deux enroulements secondaires sont empilées ensemble avec ladite plaquette de circuit imprimé qui constitue ledit enroulement primaire dans une configuration en sandwich.
  9. Combinaison d'un dispositif magnétique et d'une plaquette de circuit imprimé principale selon la revendication 1 dans laquelle lesdites plaquettes de circuit imprimé (203, 204, 303, 304, 305) ont chacune une structure multicouche ayant au moins deux couches pour former un ou plusieurs tours d'enroulement d'inducteur.
EP07005609A 2007-03-19 2007-03-19 Transformateur planaire indépendant Not-in-force EP1973124B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT07005609T ATE554487T1 (de) 2007-03-19 2007-03-19 Unabhängiger planarer transformator
EP07005609A EP1973124B1 (fr) 2007-03-19 2007-03-19 Transformateur planaire indépendant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07005609A EP1973124B1 (fr) 2007-03-19 2007-03-19 Transformateur planaire indépendant

Publications (2)

Publication Number Publication Date
EP1973124A1 EP1973124A1 (fr) 2008-09-24
EP1973124B1 true EP1973124B1 (fr) 2012-04-18

Family

ID=38359747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07005609A Not-in-force EP1973124B1 (fr) 2007-03-19 2007-03-19 Transformateur planaire indépendant

Country Status (2)

Country Link
EP (1) EP1973124B1 (fr)
AT (1) ATE554487T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10062496B2 (en) 2015-02-26 2018-08-28 Lear Corporation Planar transformer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8054154B2 (en) 2008-09-26 2011-11-08 Linclon Global, Inc. Planar transformer and method of manufacturing
US9620278B2 (en) 2014-02-19 2017-04-11 General Electric Company System and method for reducing partial discharge in high voltage planar transformers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435461A2 (fr) * 1989-12-29 1991-07-03 AT&T Corp. Composant magnétique de faible profil ayant plusieurs enroulements à couches
US20050212640A1 (en) * 2004-03-24 2005-09-29 Chiang Man-Ho Multi-layer printed circuit board transformer winding

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0689214B1 (fr) 1994-06-21 1999-09-22 Sumitomo Special Metals Co., Ltd. Procédé de fabrication de substrat à enroulements imprimés à multicouches
GB2337863B (en) 1998-05-09 2002-08-14 Frederick E Bott Coil substrate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435461A2 (fr) * 1989-12-29 1991-07-03 AT&T Corp. Composant magnétique de faible profil ayant plusieurs enroulements à couches
US20050212640A1 (en) * 2004-03-24 2005-09-29 Chiang Man-Ho Multi-layer printed circuit board transformer winding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10062496B2 (en) 2015-02-26 2018-08-28 Lear Corporation Planar transformer

Also Published As

Publication number Publication date
ATE554487T1 (de) 2012-05-15
EP1973124A1 (fr) 2008-09-24

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