EP 0051854 B1 19851002 - FAILURE-INDICATING CIRCUIT FOR A CURRENT LOAD CONNECTED OVER AN ELECTRONIC SWITCHING DEVICE
Title (en)
FAILURE-INDICATING CIRCUIT FOR A CURRENT LOAD CONNECTED OVER AN ELECTRONIC SWITCHING DEVICE
Publication
Application
Priority
DE 3042415 A 19801111
Abstract (en)
[origin: WO8201801A1] Circuit for signalling, by means of a signalling device, the defaults at a current consumer connected through an electronic coupling device, with which a control signal, causing the insertion of the current consumer, may be brought at the input of the electronic coupling device by a control line. In order to reduce the member of input lines in a control station, the input resistance of the electronic coupling device may be varied by means of an impedance controlled by a default signal and the signalling device is actuated in relation to the current circulating in the control line so as to give a default indication when the current in the control line deviates from its value in the absence of default.
IPC 1-7
IPC 8 full level
G01R 31/00 (2006.01); G01R 31/02 (2006.01); G05B 9/02 (2006.01); G08B 21/00 (2006.01); H05B 37/03 (2006.01)
CPC (source: EP US)
H05B 47/20 (2020.01 - EP US)
Citation (examination)
DE 2203426 A1 19720817 - NIPPON DENSO CO
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0051854 A1 19820519; EP 0051854 B1 19851002; DE 3042415 A1 19820729; DE 3042415 C2 19900802; DE 3172547 D1 19851107; JP H023469 B2 19900123; JP S57501976 A 19821104; US 4584555 A 19860422; WO 8201801 A1 19820527
DOCDB simple family (application)
EP 81109507 A 19811104; DE 3042415 A 19801111; DE 3172547 T 19811104; EP 8100176 W 19811104; JP 50364781 A 19811104; US 40350382 A 19820712