EP 2220752 A1 20100825 - BOOSTER CIRCUIT WITH DC BUS PRECHARGE CIRCUIT
Title (en)
BOOSTER CIRCUIT WITH DC BUS PRECHARGE CIRCUIT
Title (de)
HOCHSETZSTELLER MIT GLEICHSTROMBUS-VORLADESCHALTUNG
Title (fr)
CIRCUIT ÉLÉVATEUR DE TENSION AVEC CIRCUIT DE PRECHARGE DE BUS C.C.
Publication
Application
Priority
- FR 2008001622 W 20081120
- FR 0708144 A 20071120
Abstract (en)
[origin: WO2009101269A1] The present invention relates to a voltage step-up circuit (100). One particularly advantageous application of the invention is in the field of 12 V/42 V DC/DC power convertors supplied by the power system onboard a motor vehicle (12 V battery voltage). The circuit (100) according to the invention comprises a voltage source (S) having a first terminal (+BAT) and a second terminal, at least one inductor (Lb), the first terminal of which is connected to the first terminal (+BAT) of the voltage source (S), at least one diode (Db), the anode of which is connected to the second terminal of the inductor (Lb), at least one capacitor (Cb), the first terminal of which is connected to the cathode of the diode (Db), at least one current switch (Mb) connected between the second terminal of the inductor (Lb) and the second terminal of the voltage source (S), and a second current switch (M) connected between the second terminal of the capacitor (Cb) and the second terminal of the voltage source (S). The circuit (100) according to the invention further includes means (D) for allowing the current to flow from the second terminal of the capacitor (Cb) to the first terminal (+BAT) of the voltage source (S).
IPC 8 full level
H02M 1/36 (2007.01); H02H 9/00 (2006.01); H02M 3/155 (2006.01)
CPC (source: EP US)
H02M 1/36 (2013.01 - EP US); H02M 3/155 (2013.01 - EP US)
Citation (search report)
See references of WO 2009101269A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
FR 2923962 A1 20090522; FR 2923962 B1 20091120; BR PI0820580 A2 20150616; CN 101953059 A 20110119; EP 2220752 A1 20100825; JP 2011504088 A 20110127; KR 20100092948 A 20100823; US 2010315048 A1 20101216; WO 2009101269 A1 20090820
DOCDB simple family (application)
FR 0708144 A 20071120; BR PI0820580 A 20081120; CN 200880116455 A 20081120; EP 08872316 A 20081120; FR 2008001622 W 20081120; JP 2010534515 A 20081120; KR 20107011998 A 20081120; US 74326608 A 20081120