EP 1973124 B1 20120418 - Independent planar transformer
Title (en)
Independent planar transformer
Title (de)
Unabhängiger planarer Transformator
Title (fr)
Transformateur planaire indépendant
Publication
Application
Priority
EP 07005609 A 20070319
Abstract (en)
[origin: EP1973124A1] A high-efficiency independent planar transformer comprises a pair of up-and-down symmetrical soft ferrite magnetic cores; a primary winding comprising at least one printed circuit board each having a multi-layer structure having at least two layers to form the inductor winding with at least four turns; and two secondary windings comprising at least two planar copper plates or two printed circuit boards. The primary winding and the secondary windings are electrically connected to the main circuit board via terminals. By means of the unique output structure, in the primary winding, two kinds of different output connection structures of the inductor winding can be formed by upward disposing the component side or the solder side of the printed circuit board. In the secondary winding, the inductor winding outputs in series and parallel connections can be accomplished by means of the output terminals or the short-circuit connection with the main circuit board.
IPC 8 full level
H01F 17/00 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01)
CPC (source: EP)
H01F 17/0013 (2013.01); H01F 27/2804 (2013.01); H01F 27/29 (2013.01); H01F 27/027 (2013.01); H01F 27/2852 (2013.01); H01F 2027/2809 (2013.01); H01F 2027/2819 (2013.01)
Citation (examination)
- EP 0435461 A2 19910703 - AMERICAN TELEPHONE & TELEGRAPH [US]
- US 2005212640 A1 20050929 - CHIANG MAN-HO [HK], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1973124 A1 20080924; EP 1973124 B1 20120418; AT E554487 T1 20120515
DOCDB simple family (application)
EP 07005609 A 20070319; AT 07005609 T 20070319