EP 2274753 B1 20170607 - POWER TRANSFORMER FOR RADIOFREQUENCY SIGNALS
Title (en)
POWER TRANSFORMER FOR RADIOFREQUENCY SIGNALS
Title (de)
LEISTUNGSWANDLER FÜR HOCHFREQUENZSIGNALE
Title (fr)
TRANSFORMATEUR DE PUISSANCE POUR SIGNAUX RADIOFREQUENCES
Publication
Application
Priority
- EP 2009054378 W 20090414
- FR 0802247 A 20080422
Abstract (en)
[origin: WO2009130139A1] The present invention relates to a power transformer for radiofrequency signals. The transformer is made in a low-cost multilayer printed circuit card (201) comprising at least successively the following stacked layers: a first conducting layer, a first dielectric substrate layer, a second conducting layer, a second dielectric substrate layer, and a third conducting layer, the primary winding being formed by a turn printed in the second conducting layer, the secondary winding (103) being formed by a first turn printed in the first conducting layer, this first turn being linked to a second turn printed in the third conducting layer, the turns of the secondary winding being placed opposite the turn of the primary, the card being clamped above and below by two plates of ferromagnetic material. Capacitive components connected between winding(s) and an exposed conductive part can improve the performance of the proposed transformer.
IPC 8 full level
H01F 19/04 (2006.01); H01F 27/28 (2006.01); H03H 7/38 (2006.01)
CPC (source: EP US)
H01F 19/04 (2013.01 - EP US); H01F 27/2804 (2013.01 - EP US); H01F 17/0013 (2013.01 - EP US); H01F 2027/2819 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2930368 A1 20091023; FR 2930368 B1 20111007; EP 2274753 A1 20110119; EP 2274753 B1 20170607; US 2011109417 A1 20110512; WO 2009130139 A1 20091029
DOCDB simple family (application)
FR 0802247 A 20080422; EP 09735922 A 20090414; EP 2009054378 W 20090414; US 98895709 A 20090414