EP 1303903 A1 20030423 - A DC SWITCHING REGULATOR
Title (en)
A DC SWITCHING REGULATOR
Title (de)
GLEICHSTROMSCHALTREGLER
Title (fr)
REGULATEUR DE COMMUTATION EN COURANT CONTINU
Publication
Application
Priority
- GB 0103231 W 20010718
- GB 0017630 A 20000718
Abstract (en)
[origin: WO0207296A1] A DC switching regulator including a transformer (306) having a primary winding (308) and a secondary winding (310) a primary switch (302) connected in series with the primary winding (308) and having an ON condition and an OFF condition in which conditions the primary winding (308) is respectively connected and not connected across a power source (312). A storage capacitor (314) is arranged to absorb magnetization and leakage energy from the primary winding (3089 when the primary switch (302) is in said OFF condition. A unidirectional conducting device (313) is connected between the primary winding (308) and the storage capacitor (314) so as to prevent energy from the storage capacitor (314) passing back to the primary winding (308). An auxiliary switch (316) is connected in series with the storage capacitor (314) and has an ON condition and an OFF condition. An inductor (320) is arranged to absorb energy from the storage capacitor (314) while the auxiliary switch (316) is in the ON condition. This regulator has a resetting function for the main transformer (306) which prevents negative saturation of its core while providing zero volt switching of the primary switch (302) and of the auxiliary switch (316).
IPC 1-7
IPC 8 full level
H02M 1/40 (2007.01); H02M 3/335 (2006.01)
CPC (source: EP US)
H02M 1/40 (2013.01 - EP US); H02M 3/33569 (2013.01 - EP US)
Citation (search report)
See references of WO 0207296A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0207296 A1 20020124; EP 1303903 A1 20030423; GB 0017630 D0 20000906; GB 2370655 A 20020703; GB 2370655 B 20050119
DOCDB simple family (application)
GB 0103231 W 20010718; EP 01949748 A 20010718; GB 0017630 A 20000718