Bibliographic data

Document DE000004126740A1 (Pages: 8)

Bibliographic data Document DE000004126740A1 (Pages: 8)
INID Criterion Field Contents
54 Title TI [DE] Schaltungsanordnung zur Überwachung des Potentialpegels auf elektrischen Leitern
[EN] Monitoring circuitry for potential level on electrical conductors - has one or more comparators with controllable hysteresis shifted by delay element
71/73 Applicant/owner PA Siemens AG, 8000 München, DE
72 Inventor IN Schrabal, Gerhard, 8000 München, DE
22/96 Application date AD Aug 13, 1991
21 Application number AN 4126740
Country of application AC DE
Publication date PUB Mar 12, 1992
33
31
32		 Priority data PRC
PRN
PRD		 EP
90117013
19900904
51 IPC main class ICM G01R 19/165
51 IPC secondary class ICS
IPC additional class ICA
IPC index class ICI
Cooperative patent classification CPC G01R 19/0038
G01R 19/16585
H03K 3/013
H03K 3/02337
H03K 5/1252
MCD main class MCM
MCD secondary class MCS G01R 19/00 (2006.01)
G01R 19/165 (2006.01)
H03K 3/013 (2006.01)
H03K 3/0233 (2006.01)
H03K 5/1252 (2006.01)
MCD additional class MCA
57 Abstract AB [DE] Schaltungsanordnung zur Überwachung des Potentialpegels auf elektrischen Leitern, bestehend aus einem Komparator mit Schalthysterese und einem diesem Komparator nachgeschalteten Verzögerungsglied, die derart ausgestaltet ist, daß die Schalthysterese des Komparators steuerbar ist und daß die Schaltschwelle des Komparators in Abhängigkeit vom Ausgangssignal des Verzögerungsgliedes verschoben wird.
[EN] A circuit for monitoring the potential level on electrical conductors contains a comparator with controllable switching hysteresis and a delay element connected after the comparator. The comparator's switching threshold is shifted according to the output of the delay element. Alternatively, the circuit can contain at least two comparators (ST1a-ST1n) whose outputs are each connected to an input of a logical combination circuit (AND1) which drives a delay element (VG). Each comparator's threshold is shifted according to the output signals of the comparator and of the delay element. ADVANTAGE - Can respond to potential changes.
56 Cited documents identified in the search CT CH000000668871A
DE000003225800C1
EP000000143111A1
EP000000243634A1
US000004549099A
56 Cited documents indicated by the applicant CT
56 Cited non-patent literature identified in the search CTNP "Linear Integrated Circuits Databook" Unitrode IC500, Unitrode Corp. USA p 0;
Tietze/Schenk, "Halbleiterschaltungs- technik", 5. Aufl., 1980, S. 411-418 p 0
56 Cited non-patent literature indicated by the applicant CTNP
Citing documents Determine documents
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Search file IPC ICP G01R 19/165 PS
H03K 5/1252