EP 0851443 A1 19980701 - High voltage diode split half bulk transformer
Title (en)
High voltage diode split half bulk transformer
Title (de)
Diodensplit-Hochspannungstransformator mit Halb-Lagenwicklungen
Title (fr)
Transformateur haute tension à enroulements en semicouches séparés par diodes
Publication
Application
Priority
FR 9616033 A 19961226
Abstract (en)
The invention relates to a process for winding the coils of a high-voltage transformer for a cathode-ray tube. According to the invention the tertiary windings are coiled by imparting a locally oscillatory motion, in an axial direction of the coil former, to a wire-guide which guides the wire to be coiled towards a rotating coil former. The tertiary windings of a transformer made according to the invention are such that neighbouring turns constituting the winding overlap one another. As a result a larger number of turns can be coiled on the same length of coil. The transformer according to the invention therefore includes a smaller number of diodes 10 and of intermediate insulating layers 24 between windings of the tertiary. The electromagnetic coupling quality remains good. The process allows good reproducibility of the product. <IMAGE>
IPC 1-7
IPC 8 full level
H01F 38/42 (2006.01); H01F 41/04 (2006.01); H01F 41/06 (2006.01)
CPC (source: EP)
H01F 38/42 (2013.01); H01F 41/082 (2016.01)
Citation (search report)
- [Y] US 2180208 A 19391114 - JACOB FREDERICK N
- [A] FR 1569889 A 19690606
- [A] US 5448216 A 19950905 - KUZE YOSHIKAZU [JP], et al
- [A] US 5209414 A 19930511 - CLEMENS DOUGLAS J [US], et al
- [DY] PATENT ABSTRACTS OF JAPAN vol. 008, no. 131 (E - 251) 19 June 1984 (1984-06-19)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0851443 A1 19980701; CN 1186312 A 19980701; FR 2757996 A1 19980703; FR 2757996 B1 19990716; JP H10199743 A 19980731
DOCDB simple family (application)
EP 97402967 A 19971209; CN 97125548 A 19971219; FR 9616033 A 19961226; JP 35719697 A 19971225