Global Patent Index - EP 0923092 A3

EP 0923092 A3 20000712 - Transformer

Title (en)

Transformer

Title (de)

Transformator

Title (fr)

Transformateur

Publication

EP 0923092 A3 20000712 (DE)

Application

EP 98204108 A 19981203

Priority

DE 19754845 A 19971210

Abstract (en)

[origin: EP0923092A2] The transformer has a primary winding (2) with a certain stray inductance, magnetically coupled to at least one secondary winding (3) with a given voltage conversion ratio. The primary winding includes at least two winding parts whose magnetic couplings to at least one of the secondary windings are in opposite directions to each other. The two winding parts are substantially decoupled from each other. Independent claims are included for a voltage converter and an electrical apparatus using the transformer.

IPC 1-7

H01F 38/08

IPC 8 full level

H01F 27/28 (2006.01); H01F 30/00 (2006.01); H01F 38/08 (2006.01)

CPC (source: EP US)

H01F 38/08 (2013.01 - EP US)

Citation (search report)

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)

EP 0923092 A2 19990616; EP 0923092 A3 20000712; DE 19754845 A1 19990617; JP H11243019 A 19990907; US 6100781 A 20000808

DOCDB simple family (application)

EP 98204108 A 19981203; DE 19754845 A 19971210; JP 34693898 A 19981207; US 20597698 A 19981204