Autarkic field device or autarkic radio adapter for a field...

G - Physics – 05 – B

Patent

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Details

G05B 9/02 (2006.01) G05B 19/042 (2006.01)

Patent

CA 2733164

The invention relates to an autarkic field device or an autarkic radio adapter (2) for a field device (1), of automation technology fed with limited energy via an energy supply unit (3)associated, or associable, with the field device (1) or the radio adapter (2), characterized in that, between the energy supply unit (3) and an internal voltage source (4), whose voltage exceeds, or at times can exceed, the voltage of the energy supply unit (3), a barrier (5a; 5b) of at least one diode group having at least two diodes (6) connected in parallel is arranged, which blocks flow of electrical current from the internal voltage source (4) to the energy supply unit (3) or to the connection terminals (7) of the field device (1) or of the radio adapter (2) for the energy supply unit (3).

L'invention concerne un appareil de terrain autonome ou un adaptateur radio (2) autonome pour un appareil de terrain (1) de la technologie d'automatisation, ledit appareil de terrain (1) ou adaptateur radio (2) étant alimenté en énergie limitée par une unité d'alimentation en énergie (3) associée, caractérisé en ce qu'une barrière (5a; 5b) qui est placée entre l'unité d'alimentation en énergie (3) et une source de tension (4) interne d'une tension supérieure à ou apte à dépasser de temps en temps la tension de l'unité d'alimentation en énergie (3), est composée d'au moins un groupe de diodes présentant au moins deux diodes (6) montées en parallèle, ladite barrière bloquant un retour de courant de charge de la source de tension (4) interne jusqu'à l'unité d'alimentation en énergie (3) ou jusqu'aux bornes de raccordement (7) de l'appareil de terrain (1) ou de l'adaptateur radio (2) pour l'unité d'alimentation en énergie (3).

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