EP 2483984 B1 20141001 - FREE-WHEELING CIRCUIT
Title (en)
FREE-WHEELING CIRCUIT
Title (de)
FREILAUFKREIS
Title (fr)
CIRCUIT ROUE LIBRE
Publication
Application
Priority
- DE 102009043415 A 20090929
- EP 2010061621 W 20100810
Abstract (en)
[origin: WO2011038969A2] The invention relates to a free-wheeling circuit for the rapid reduction of a shutdown overvoltage of an inductive load (1) when the latter is shut down. The free-wheeling circuit comprises a switching threshold component (11) by which the free-wheeling circuit becomes active more rapidly compared to a free-wheeling circuit without said switching threshold component (11), thereby ensuring a more rapid reduction of the shutdown overvoltage. If a control voltage provided by a control voltage source (2) falls below a threshold voltage set by the switching threshold component (11), a capacitive energy accumulator is immediately discharged and not only when the control voltage is reduced to near zero, and said energy accumulator then activates the free-wheeling circuit for reducing the shutdown overvoltage, when in the nearly discharged state.
IPC 8 full level
CPC (source: EP US)
H01F 7/1811 (2013.01 - EP US); H01F 7/1883 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
DE 102009043415 B3 20101014; BR 112012006975 A2 20160405; BR 112012006975 B1 20201117; CN 103109431 A 20130515; CN 103109431 B 20150520; EP 2483984 A2 20120808; EP 2483984 B1 20141001; IN 1648DEN2012 A 20150605; KR 101691900 B1 20170102; KR 20120091134 A 20120817; US 2012188675 A1 20120726; US 8830649 B2 20140909; WO 2011038969 A2 20110407; WO 2011038969 A3 20130418
DOCDB simple family (application)
DE 102009043415 A 20090929; BR 112012006975 A 20100810; CN 201080043664 A 20100810; EP 10743100 A 20100810; EP 2010061621 W 20100810; IN 1648DEN2012 A 20120223; KR 20127010791 A 20100810; US 201013498663 A 20100810