EP 1086477 B1 20060802 - INPUT CIRCUIT FOR RELATIVELY HIGH CURRENT AC SIGNALS TO BE MONITORED
Title (en)
INPUT CIRCUIT FOR RELATIVELY HIGH CURRENT AC SIGNALS TO BE MONITORED
Title (de)
EINGANGSSCHALTUNG FÜR RELATIV HOCHSTROMIGE ZU ÜBERWACHENDE AC-SIGNALE
Title (fr)
CIRCUIT D'ENTREE POUR SIGNAUX DE COURANT ALTERNATIF A INTENSITE RELATIVEMENT ELEVEE A SURVEILLER
Publication
Application
Priority
- DE 19916686 A 19990414
- EP 0002924 W 20000401
Abstract (en)
[origin: US6483379B1] The invention relates to an input circuit for relatively high-current alternating current-signals to be monitored. Said input circuit is provided with a capacitor (C) at the input side for supplying a relatively high input current on the basis of an AC supply voltage (L1) by the switched off device (1; 2) to be monitored. At the input side a discharge circuit (23) is provided in parallel for quickly detecting any changes of state of the device (1; 2) to be monitored. Said discharge circuit has a small discharge resistance (Rc) vis-à-vis the input resistance (Re). The discharge circuit (23) is further provided with a switch element (S3) that is blocked when the current supply voltage (L1) and the threshold voltage (Ustyp) to be recognized have the same polarity and that is conductive when they are of different polarity.
IPC 8 full level
G01R 19/00 (2006.01); H01H 9/16 (2006.01); G05F 1/10 (2006.01); G06F 1/28 (2006.01)
CPC (source: EP US)
H01H 9/167 (2013.01 - EP US)
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)
US 6483379 B1 20021119; AT E335283 T1 20060815; AU 4397800 A 20001102; AU 741075 B2 20011122; CN 1130739 C 20031210; CN 1300439 A 20010620; DE 19916686 A1 20001019; DE 50013258 D1 20060914; EP 1086477 A1 20010328; EP 1086477 B1 20060802; ES 2269132 T3 20070401; JP 2002542497 A 20021210; JP 3524878 B2 20040510; PT 1086477 E 20061229; WO 0063930 A1 20001026; ZA 200100364 B 20011022
DOCDB simple family (application)
US 73702500 A 20001214; AT 00925159 T 20000401; AU 4397800 A 20000401; CN 00800557 A 20000401; DE 19916686 A 19990414; DE 50013258 T 20000401; EP 0002924 W 20000401; EP 00925159 A 20000401; ES 00925159 T 20000401; JP 2000612970 A 20000401; PT 00925159 T 20000401; ZA 200100364 A 20010112