EP 1196981 A2 20020417 - CONTROL OF DC/DC CONVERTERS HAVING SYNCHRONOUS RECTIFIERS
Title (en)
CONTROL OF DC/DC CONVERTERS HAVING SYNCHRONOUS RECTIFIERS
Title (de)
REGELUNG VON GLEICHSPANNUNGSWANDLERN MIT SYNCHRONGLEICHRICHTERN
Title (fr)
COMMANDE DE CONVERTISSEURS CONTINU-CONTINU COMPORTANT DES REDRESSEURS SYNCHRONES
Publication
Application
Priority
- US 0018748 W 20000707
- US 14258099 P 19990707
- US 14398099 P 19990715
- US 14625299 P 19990729
- US 17288499 P 19991220
Abstract (en)
[origin: WO0103277A2] A DC to DC power converter includes synchronous rectifiers which respond to a control waveform. Negative current from a load into the power converter is prevented by increasing the converter output voltage at a minimum current limit. The synchronous rectifiers may be held off in response to decision logic by activation of a hold-off circuit connected to a control terminal of a synchronous rectifier or of an ORing transistor at the converter output. When the synchronous rectifier is subsequently enabled, its control waveform may be increased slowly relative to the switching cycle.
IPC 1-7
IPC 8 full level
H02M 3/28 (2006.01); H02M 1/00 (2007.01); H02M 1/32 (2007.01); H02M 3/158 (2006.01); H02J 1/10 (2006.01)
CPC (source: EP)
H02M 1/32 (2013.01); H02M 3/1584 (2013.01); H02J 1/102 (2013.01)
Citation (search report)
See references of WO 0103277A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0103277 A2 20010111; WO 0103277 A3 20011101; AU 5925200 A 20010122; CA 2378666 A1 20010711; CN 1379927 A 20021113; EP 1196981 A2 20020417; JP 2003504997 A 20030204
DOCDB simple family (application)
US 0018748 W 20000707; AU 5925200 A 20000707; CA 2378666 A 20000707; CN 00812260 A 20000707; EP 00945283 A 20000707; JP 2001508576 A 20000707