EP 0792538 A1 19970903 - CIRCUIT FOR THE MULTIPLE USE OF A TRANSFORMER CORE
Title (en)
CIRCUIT FOR THE MULTIPLE USE OF A TRANSFORMER CORE
Title (de)
SCHALTUNGSANORDNUNG ZUR MEHRFACHAUSNUTZUNG EINES ÜBERTRAGERKERNS
Title (fr)
CIRCUIT DESTINE A L'UTILISATION MULTIPLE D'UN NOYAU DE TRANSFORMATEUR
Publication
Application
Priority
- DE 9600849 W 19960514
- DE 19534888 A 19950920
Abstract (en)
[origin: DE19534888A1] A circuit for the multiple use of a transformer core (2), on which a winding (4, 5) with a central tapping (6) is fitted on the primary side and two separate windings (11, 14) on the secondary side, has a controlled switch (S1, S2) in each lead to the two primary windings (4, 5) which is preferably clocked a high frequency. To the first secondary winding (11) is connected a rectifier (12), especially to form a switched-mode power supply (9), which is thus powered. To the second secondary winding (14) is connected an FET (15), especially to provide drive pulse transmission (10), preferably via two zener diodes (Z1, Z2) in anti-series, to which drive pulses are thus supplied. The magnetic circuit of the transformer (1) is driven with differing polarity via the switch (S1, S2) from the primary side (3). The switch-on duty factor of the switch is higher than 50 %.
IPC 1-7
IPC 8 full level
B60Q 1/04 (2006.01); H02M 3/28 (2006.01); H02M 3/335 (2006.01); H02M 3/337 (2006.01); H02M 9/02 (2006.01); H03K 17/687 (2006.01); H03K 17/691 (2006.01)
CPC (source: EP KR US)
H02M 3/335 (2013.01 - KR); H02M 3/33561 (2013.01 - EP US); H03K 17/691 (2013.01 - EP KR US)
Citation (search report)
See references of WO 9711529A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 19534888 A1 19970327; EP 0792538 A1 19970903; JP H10509573 A 19980914; KR 970707635 A 19971201; US 5872706 A 19990216; WO 9711529 A1 19970327
DOCDB simple family (application)
DE 19534888 A 19950920; DE 9600849 W 19960514; EP 96919540 A 19960514; JP 51228697 A 19960514; KR 19970703358 A 19970520; US 81753297 A 19970423