EP 0865656 A1 19980923 - TRANSFORMER WITH DIVIDED PRIMARY WINDING USED IN A BLOCKING-OSCILLATOR SUPPLY CIRCUIT
Title (en)
TRANSFORMER WITH DIVIDED PRIMARY WINDING USED IN A BLOCKING-OSCILLATOR SUPPLY CIRCUIT
Title (de)
TRANSFORMATOR MIT AUFGETEILTER PRIMÄRWICKLUNG IN EINER SPERRWANDLER-VERSORGUNGSSCHALTUNG
Title (fr)
TRANSFORMATEUR A ENROULEMENT PRIMAIRE DIVISE, UTILISE DANS UN CIRCUIT D'ALIMENTATION A CONVERTISSEUR A OSCILLATEUR BLOQUE
Publication
Application
Priority
- DE 9601774 W 19960919
- DE 19545304 A 19951205
Abstract (en)
[origin: DE19545304A1] The invention concerns a transformer (100) with a divided primary winding (P1a-c) for use in a blocking-oscillator supply circuit, the transformer having a secondary winding (S1) disposed between the parts of the primary winding, a magnetic core having an air gap (102) and, surrounding the core, a former on which the individual windings are wound. The transformer also has a row of connection pins to which the windings are connected. The transformer is designed in such a way that the primary winding is divided into at least three part-windings (P1a-c). That secondary winding which carries the most power for the longest time is divided into at least two part-windings (S1a, S1b). The part-windings of this secondary winding (S1) are each surrounded by two of the at least three part-windings of the primary winding on the former. One or more additional secondary windings (S2) may be located outside the composite winding (101) made up of the part-windings of the primary winding and the secondary winding carrying the most power.
IPC 1-7
IPC 8 full level
H01F 27/34 (2006.01)
CPC (source: EP KR US)
H01F 27/34 (2013.01 - KR); H01F 27/346 (2013.01 - EP US); H01F 2019/085 (2013.01 - EP US)
Citation (search report)
See references of WO 9721232A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 19545304 A1 19970612; DE 59604803 D1 20000427; EP 0865656 A1 19980923; EP 0865656 B1 20000322; JP 2000501246 A 20000202; KR 19990071929 A 19990927; US 6150914 A 20001121; WO 9721232 A1 19970612
DOCDB simple family (application)
DE 19545304 A 19951205; DE 59604803 T 19960919; DE 9601774 W 19960919; EP 96934427 A 19960919; JP 52084297 A 19960919; KR 19980704216 A 19980605; US 7770599 A 19990303