EP 1105891 A1 20010613 - PLANAR TRANSFORMER
Title (en)
PLANAR TRANSFORMER
Title (de)
FLACHTRANSFORMATOR
Title (fr)
TRANSFORMATEUR PLAN
Publication
Application
Priority
- IB 9901410 W 19990809
- ZA 987600 A 19980821
Abstract (en)
[origin: WO0011687A1] A planar transformer is provided which includes an E-shaped core with a central leg and spaced adjacent legs, a primary winding, and first and second secondary tracks. The primary winding is defined on a primary layer through which the central leg of the core extends. The first secondary track is defined on a first secondary layer, the first secondary track comprising a plurality of serially interconnected segments each defining a secondary winding which comprises a partial turn configured to provide a predefined low output voltage of the transformer. The second secondary track is defined on a second secondary layer, the second secondary track being arranged in mirror image fashion relative to the first secondary track. The secondary track may define an end region operatively subject to leakage inductance from an adjacent leg of the core to reduce the voltage in a secondary leg in an inductive manner.
IPC 1-7
IPC 8 full level
H01F 19/00 (2006.01); H01F 27/28 (2006.01); H01F 27/30 (2006.01); H01F 30/00 (2006.01); H05K 1/16 (2006.01)
CPC (source: EP)
H01F 27/2804 (2013.01); H05K 1/165 (2013.01)
Citation (search report)
See references of WO 0011687A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0011687 A1 20000302; AU 4926099 A 20000314; CA 2342164 A1 20000302; CN 1319238 A 20011024; EP 1105891 A1 20010613; JP 2002523896 A 20020730
DOCDB simple family (application)
IB 9901410 W 19990809; AU 4926099 A 19990809; CA 2342164 A 19990809; CN 99811122 A 19990809; EP 99933092 A 19990809; JP 2000566863 A 19990809