EP 0985264 A1 20000315 - COMPOSITE TRANSFORMER FOR SELF-OSCILLATOR
Title (en)
COMPOSITE TRANSFORMER FOR SELF-OSCILLATOR
Title (de)
MEHRTEILIGER TRANSFORMATOR FÜR SELBSTSCHWINGER
Title (fr)
TRANSFORMATEUR COMPOSITE POUR AUTO-OSCILLATEUR
Publication
Application
Priority
- FR 9801047 W 19980526
- FR 9706401 A 19970526
Abstract (en)
[origin: FR2763761A1] The invention concerns converters using a self-oscillator whereof the switching means cyclical conduction is provided by a control transformer the primary of which is series connected to the inductive resistor transferring converted energy onto the output load. The device is characterised in that it comprises a composite transformer including on the same magnetic circuit (7) or on coupled magnetic circuits, the inductive resistor (7d) and said control transformer combining the coils (7a, 7b, 7c) such that the magnetic field generated by said inductive resistor and the magnetic field generated by said control transformer primary travel along substantially perpendicular directions. Such a configuration enables the inductive resistor (7d) to preserve excellent magnification of circuit which can be advantageously used in series or parallel oscillating circuits. This economical device is applicable to all types of converters using a self-oscillator.
IPC 1-7
IPC 8 full level
H01F 17/04 (2006.01); H01F 19/04 (2006.01); H02M 3/338 (2006.01)
CPC (source: EP)
H01F 17/043 (2013.01); H01F 19/04 (2013.01); H02M 3/338 (2013.01); H02M 1/0064 (2021.05)
Citation (search report)
See references of WO 9854826A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
FR 2763761 A1 19981127; FR 2763761 B1 19990723; AU 7776498 A 19981230; CN 1260083 A 20000712; EP 0985264 A1 20000315; WO 9854826 A1 19981203
DOCDB simple family (application)
FR 9706401 A 19970526; AU 7776498 A 19980526; CN 98805556 A 19980526; EP 98925782 A 19980526; FR 9801047 W 19980526