EP1973124B1 - Unabhängiger planarer Transformator - Google Patents

Unabhängiger planarer Transformator 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
English (en)
French (fr)
Other versions
EP1973124A1 (de
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/de
Publication of EP1973124A1 publication Critical patent/EP1973124A1/de
Application granted granted Critical
Publication of EP1973124B1 publication Critical patent/EP1973124B1/de
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. Kombination einer magnetischen Vorrichtung und einer Hauptleiterplatte, wobei die magnetische Vorrichtung umfasst:
    mindestens eine gedruckte Leiterplatte (203, 204, 303), die in der Lage ist, eine unterschiedliche Anzahl an Induktionsspulenwindungen auszubilden, wobei die gedruckte Leiterplatte (203,2 104,303) eine Primärwindung eines ebenen Transformators ausbildet,
    mindestens zwei ebene Kupferplatten (205, 206) oder zwei gedruckte Leiterplatten (304, 305), um zwei entsprechende Sekundärwindungen des ebenen Transformators auszubilden, und
    eine Vielzahl von Ausgangsanschlüssen (207, 208 oder 306, 307), um die Primärwindung des ebenen Transformators und die Sekundärwindungen des ebenen Transformators zu verbinden,
    wobei die magnetische Vorrichtung und die Hauptleiterplatte elektrisch mit den Ausgangsanschlüssen (207, 208, 306, 307) verbunden sind, wobei verschiedene Windung - Ausgang - Anschlussstrukturen durch nach oben gerichtete Anordnung einer Komponentenseite oder einer gelöteten Seite eines Teils der wenigstens einen gedruckte Leiterplatte (203, 204, 303), die die Primärwindung bildet, ausgebildet sind,
    dadurch gekennzeichnet, dass
    die magnetische Vorrichtung umfasst:
    ein oder mehrere Paare nach oben und unten gerichteter, symmetrischer, weicher,
    magnetischer Eisenkern (201, 301, 302) vom Typ ER oder RM, wobei entweder zwei gedruckte Leiterplatten (203, 204, 303), die die gleiche Anzahl an Induktionsspulenwindungen haben, gestapelt werden, wobei entsprechende Komponentenseiten aufeinander ausgerichtet sind, um zwei Primärwindungen auszubilden,
    und wobei die zwei Primärwindungen miteinander in Reihe oder parallel über Kurzschlussverbindungen mit der Hauptleiterplatte verbunden sind, oder wobei zwei gedruckte Leiterplatten (203, 204, 303), die eine verschiedene Anzahl an Induktionsspulenwindungen haben, mit entsprechenden Komponentenseiten gestapelt sind,
    die aufeinander ausgerichtet sind, um zwei Primärwindungen auszubilden, und wobei die zwei Primärwindungen miteinander in Reihe über Kurzschlussverbindungen mit der Hauptleiterplatte verbunden sind.
  2. Kombination einer magnetischen Vorrichtung und einer Hauptleiterplatte nach Anspruch 1, bei welcher die Primärwindung und die Sekundärwindung, die Primärwindung und die Primärwindung, die Sekundärwindung und die Sekundärwindung des ebenen Transformators jeweils voneinander durch eine oder mehrere isolierende Schichten elektrisch isoliert sind.
  3. Kombination einer magnetischen Vorrichtung und einer Hauptleiterplatte nach Anspruch 1, bei welcher, wenn zwei Teile der wenigstens einen gedruckte Leiterplatte (203, 204, 303, 304, 305), die die gleiche Anzahl an Induktionsspulenwindungen haben, in Reihe gestapelt werden, um durch nach oben gerichtete Anordnung ihrer jeweiligen Komponentenseiten, zwei Primärwindungen auszubilden, die magnetische Vorrichtung und die Hauptleiterplatte elektrisch durch die Ausgangsanschlüsse (207, 208, 306, 307) verbunden sind und wobei die zwei Primärwindungen direkt miteinander in Parallelschaltungen über Anschlüsse (207, 208, 306, 307) auf der magnetischen Vorrichtung verbunden sind.
  4. Kombination einer magnetischen Vorrichtung und einer Hauptleiterplatte nach Anspruch 1, bei welcher die zwei ebenen Kupferplatten (205, 206), die die zwei Sekundärwindungen ausbilden, jeweils eine Induktionsspulenwindung umfassen.
  5. Kombination einer magnetischen Vorrichtung und einer Hauptleiterplatte nach Anspruch 4, bei welcher, wenn die zwei ebenen Kupferplatten (205, 206) gestapelt sind, um die zwei Sekundärwindungen auszubilden, die magnetische Vorrichtung und die Hauptleiterplatte elektrisch durch die Ausgangsanschlüsse (207, 208, 306, 307) verbunden sind, wobei die zwei Sekundärwindungen miteinander in Reihe oder parallel durch die Ausgangsanschlüsse (207, 208, 306, 307) oder durch Kurzschlussverbindung über die Hauptleiterplatte verbunden sind.
  6. Kombination einer magnetischen Vorrichtung und einer Hauptleiterplatte nach Anspruch 1, bei welcher die zwei gedruckten Leiterplatten (203, 204, 303, 304, 305), die die zwei Sekundärwindungen darstellen, die gleiche Anzahl an Induktionsspulenwindungen aufweisen.
  7. Kombination einer magnetischen Vorrichtung und einer Hauptleiterplatte nach Anspruch 6, bei welcher, wenn die zwei gedruckten Leiterplatten (203, 204, 303, 304, 305), die die gleiche Anzahl an Induktionsspulenwindungen haben, gestapelt sind, um die zwei Sekundärwindungen auszubilden, die magnetische Vorrichtung und die Hauptleiterplatte elektrisch durch die Ausgangsanschlüsse (207, 208, 306, 307) verbunden sind und bei welcher die zwei Sekundärwindungen in Reihe oder parallel miteinander durch die Ausgangsanschlüsse (207,2 108,3 106,307) oder durch Kurzschlussverbindung über die
    Hauptleiterplatte verbunden sind.
  8. Kombination einer magnetischen Vorrichtung und einer Hauptleiterplatte nach Anspruch 1, bei welcher die zwei ebenen Kupferplatten (205, 206) oder die zwei gedruckten Leiterplatten (203, 204, 303, 304, 305), die die zwei Sekundärwindungen ausbilden, mit der gedruckten Leiterplatte, die die Primärwindung ausbildet, in einer Sandwichanordnung aufeinander gestapelt sind.
  9. Kombination einer magnetischen Vorrichtung und einer Hauptleiterplatte nach Anspruch 1; bei welcher jede gedruckte Leiterplatte (203, 204, 303, 304, 305) eine mehrschichtige Struktur umfasst, die mindestens zwei Schichten umfasst, um eine oder mehrere Induktionsspulenwindungen auszubilden.
EP07005609A 2007-03-19 2007-03-19 Unabhängiger planarer Transformator Not-in-force EP1973124B1 (de)

Priority Applications (2)

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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07005609A EP1973124B1 (de) 2007-03-19 2007-03-19 Unabhängiger planarer Transformator

Publications (2)

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

Family

ID=38359747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07005609A Not-in-force EP1973124B1 (de) 2007-03-19 2007-03-19 Unabhängiger planarer Transformator

Country Status (2)

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

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 (de) * 1989-12-29 1991-07-03 AT&T Corp. Niedrigprofil-Magnetkomponente mit mehreren Schichtwindungen
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 (de) 1994-06-21 1999-09-22 Sumitomo Special Metals Co., Ltd. Herstellungsverfahren für Substrat mit mehrschichtigen gedruckten Spulen
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 (de) * 1989-12-29 1991-07-03 AT&T Corp. Niedrigprofil-Magnetkomponente mit mehreren Schichtwindungen
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
EP1973124A1 (de) 2008-09-24
ATE554487T1 (de) 2012-05-15

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