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1. WO1996003680 - A METHOD AND A DEVICE FOR MONITORING THE RELATION BETWEEN LOGIC SIGNALS

Publication Number WO/1996/003680
Publication Date 08.02.1996
International Application No. PCT/NL1995/000238
International Filing Date 06.07.1995
Chapter 2 Demand Filed 13.02.1996
IPC
G05B 9/02 2006.01
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
9Safety arrangements
02electric
CPC
G05B 9/02
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
9Safety arrangements
02electric
Applicants
  • GTI HOLDING N.V. [NL/NL]; Landdrostlaan 51 NL-7327 GM Apeldoorn, NL (AllExceptUS)
  • STEINZ, Hendrik, Christiaan [NL/NL]; NL (UsOnly)
  • VAN LOHUIZEN, Reinder, Lubertus [NL/NL]; NL (UsOnly)
Inventors
  • STEINZ, Hendrik, Christiaan; NL
  • VAN LOHUIZEN, Reinder, Lubertus; NL
Agents
  • HOOIVELD, Arjen, Jan, Winfried; Trenité Van Doorne De Lairessestraat 133 NL-1075 HJ Amsterdam, NL
Priority Data
940119721.07.1994NL
Publication Language English (EN)
Filing Language Dutch (NL)
Designated States
Title
(EN) A METHOD AND A DEVICE FOR MONITORING THE RELATION BETWEEN LOGIC SIGNALS
(FR) PROCEDE ET DISPOSITIF DE CONTROLE DE LA RELATION ENTRE SIGNAUX LOGIQUES
Abstract
(EN)
When monitoring the relation between logic signals from which a control signal is derived, a transformer is switched on and off by means of the control signal, whereby the switching transformer generates a supply voltage, which is in turn necessary for deriving the control signal, so that said switching stops when the relation to be monitored is disturbed and the generation of the supply voltage is discontinued. A device functioning in this manner is used in protection circuits which need to have a very high degree of reliability.
(FR)
Procédé de contrôle de la relation entre signaux logiques dont est dérivé un signal de commande, selon lequel un transformateur est mis sous tension et hors tension en alternance au moyen du signal de commande, et, pendant cette commutation, un transformateur produit une tension d'alimentation elle-même nécessaire pour dériver le signal de commande, de sorte que ladite commutation s'arrête lorsque la relation à contrôler est perturbée et que la production de la tension d'alimentation s'interrompt. Un dispositif fonctionnant de cette façon est utilisable dans la protection des circuits dont on exige une très grande fiabilité.
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