EP 2412208 A1 20120201 - OVERVOLTAGE PROTECTION FOR A BUS DEVICE
Title (en)
OVERVOLTAGE PROTECTION FOR A BUS DEVICE
Title (de)
ÜBERSPANNUNGSSCHUTZ FÜR EIN BUSGERÄT
Title (fr)
PROTECTION CONTRE LES SURTENSIONS POUR UN DISPOSITIF DE BUS
Publication
Application
Priority
- EP 2010001128 W 20100224
- DE 102009015068 A 20090326
Abstract (en)
[origin: WO2010108580A1] The invention relates to a bus device with an electronic circuit (1), which is connected, via feed lines, to a low-voltage interface (2), which has at least one first and one second connection terminal (DA+, DA-) for connecting a bus line to the electronic circuit (1), which electronic circuit (1) comprises a current source (4). A first diode (10) is provided in the feed line between the electronic circuit (1) and a first connection terminal (DA+) and is off when an overvoltage of a first polarity is applied to the low-voltage interface (2), wherein a switch (12) is provided between the current source (4) and the feed line to the other connection terminal, and wherein an overvoltage detection circuit (13) is connected to the feedline to the other connection terminal (DA-) and interacts with the switch (12), with the result that, when an overvoltage of a second polarity is applied to the low-voltage interface (2), the switch (12) interrupts the connection between the current source (4) and the other connection terminal.
IPC 8 full level
H05B 37/02 (2006.01); H05B 41/285 (2006.01)
CPC (source: EP)
H05B 41/2851 (2013.01); H05B 47/18 (2020.01)
Citation (search report)
See references of WO 2010108580A1
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 MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2010108580 A1 20100930; CN 102369789 A 20120307; CN 102369789 B 20150401; DE 102009015068 A1 20101007; EP 2412208 A1 20120201; EP 2412208 B1 20130814; ES 2433241 T3 20131210; PL 2412208 T3 20140131
DOCDB simple family (application)
EP 2010001128 W 20100224; CN 201080015642 A 20100224; DE 102009015068 A 20090326; EP 10705311 A 20100224; ES 10705311 T 20100224; PL 10705311 T 20100224