DE69029045D1 - Screen arrangement for a transformer of a switching power supply - Google Patents

Screen arrangement for a transformer of a switching power supply

Info

Publication number
DE69029045D1
DE69029045D1 DE69029045T DE69029045T DE69029045D1 DE 69029045 D1 DE69029045 D1 DE 69029045D1 DE 69029045 T DE69029045 T DE 69029045T DE 69029045 T DE69029045 T DE 69029045T DE 69029045 D1 DE69029045 D1 DE 69029045D1
Authority
DE
Germany
Prior art keywords
transformer
power supply
switching power
screen arrangement
screen
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
DE69029045T
Other languages
German (de)
Other versions
DE69029045T2 (en
Inventor
Jean-Yves Buatois
Jean-Michel Bouillot
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.)
Thomson Television Components France SA
Original Assignee
Thomson Television Components France SA
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 Thomson Television Components France SA filed Critical Thomson Television Components France SA
Application granted granted Critical
Publication of DE69029045D1 publication Critical patent/DE69029045D1/en
Publication of DE69029045T2 publication Critical patent/DE69029045T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications
DE69029045T 1989-12-01 1990-11-28 Screen arrangement for a transformer of a switching power supply Expired - Fee Related DE69029045T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8915884A FR2655475B1 (en) 1989-12-01 1989-12-01 SHIELDING DEVICE FOR A CUT-OUT POWER TRANSFORMER.

Publications (2)

Publication Number Publication Date
DE69029045D1 true DE69029045D1 (en) 1996-12-05
DE69029045T2 DE69029045T2 (en) 1997-09-25

Family

ID=9388042

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69029045T Expired - Fee Related DE69029045T2 (en) 1989-12-01 1990-11-28 Screen arrangement for a transformer of a switching power supply
DE69027185T Expired - Fee Related DE69027185T2 (en) 1989-12-01 1990-11-28 Screen arrangement for a tramformer of a switching power supply

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69027185T Expired - Fee Related DE69027185T2 (en) 1989-12-01 1990-11-28 Screen arrangement for a tramformer of a switching power supply

Country Status (5)

Country Link
EP (2) EP0609155B1 (en)
DE (2) DE69029045T2 (en)
ES (2) ES2097613T3 (en)
FR (1) FR2655475B1 (en)
SG (2) SG46473A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3311391B2 (en) 1991-09-13 2002-08-05 ヴィエルティー コーポレーション Leakage inductance reducing transformer, high frequency circuit and power converter using the same, and method of reducing leakage inductance in transformer
EP0775765B1 (en) * 1995-11-27 2004-02-04 Vlt Corporation Plating permeable cores
FR2756967B1 (en) * 1996-12-09 1999-01-08 Thomson Television Components TRANSFORMER FOR HIGH-CUT FREQUENCY POWER SUPPLY

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069711B (en) * 1959-11-26
CH607264A5 (en) * 1975-05-23 1978-11-30 Landis & Gyr Ag Instrument transformer with earthed screen between windings
DE2931382A1 (en) * 1979-08-02 1981-02-26 Bosch Gmbh Robert SHORT RING SENSOR
DD200830A1 (en) * 1981-09-25 1983-06-15 Martin Dietrich HOCHSPANNUNGSABSCHIRMELEKTRODE
DE3147984A1 (en) * 1981-12-04 1983-06-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt TRANSFORMER, ESPECIALLY FOR A SWITCHING POWER SUPPLY IN A TELEVISION RECEIVER
IT8334023V0 (en) * 1983-05-09 1983-05-09 Ducati Elettrotecnica Spa SMT TRANSFORMER WITH FERRITE CORE.
JPS61137309A (en) * 1984-12-08 1986-06-25 Nissin Electric Co Ltd Gas insulated potential transformer

Also Published As

Publication number Publication date
FR2655475A1 (en) 1991-06-07
EP0609155B1 (en) 1996-10-30
DE69027185D1 (en) 1996-07-04
ES2097613T3 (en) 1997-04-01
EP0609155A2 (en) 1994-08-03
DE69029045T2 (en) 1997-09-25
SG46710A1 (en) 1998-02-20
SG46473A1 (en) 1998-02-20
EP0430802B1 (en) 1996-05-29
EP0609155A3 (en) 1994-12-14
EP0430802A1 (en) 1991-06-05
DE69027185T2 (en) 1996-11-07
FR2655475B1 (en) 1992-02-21
ES2088424T3 (en) 1996-08-16

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication of lapse of patent is to be deleted
8370 Indication of lapse of patent is to be deleted
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee