Release element for initiating pyrotechnics

F - Mech Eng,Light,Heat,Weapons – 42 – B

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F42B 3/12 (2006.01) B60R 21/01 (2006.01) F42C 11/06 (2006.01)

Patent

CA 2378627

The invention relates to an electronic release mechanisms, especially for use in the automotive field or as a fuse. All functions such as overvoltage protection, limiter structures, filter properties, fuse address allocations, arming codes and the setting of delay times are realized by means of a circuit that consists of electronic components. Said circuit essentially consists of an integrated circuit that is enclosed by an IC housing. The operability of this circuit and its tamper-proofness are the most important qualitative criteria. According to the invention, the connections (12) of the IC housing (11) are configured as connecting points (15) for test control units for testing the operability of the integrated circuit (10) and the operability of the fuse. Said connecting points are used to connect the element to external electronic devices with which the electronic fuse is programmed.

La présente invention concerne des dispositifs de déclenchement électroniques, notamment utilisés dans le domaine automobile ou en tant que détonateurs. Dans ces dispositifs, toutes les fonctions telles que les limiteurs de tension, les structures de limitation, les propriétés de filtre, les attributions d'adresse de détonateur, les codes d'armement et le réglage de la temporisation sont réalisées au moyen d'un circuit constitué de composants électroniques. Ce circuit est essentiellement constitué d'un circuit intégré enfermé dans un boîtier de circuit intégré. La capacité de fonctionnement de ce circuit et sa sécurité par rapport aux perturbations sont les critères de qualité les plus importants. Pour cette raison, l'invention se caractérise en ce que les connexions (12) du boîtier de circuit intégré (11) servent de points de connexion (15) aux appareils de contrôle, afin de surveiller la capacité de fonctionnement du circuit intégré (10) et le fonctionnement du détonateur, et permettent la connexion à des appareils électroniques externes, afin de programmer le détonateur électronique.

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