Power cut-off device

Details Power cut-off device Power cut-off device

H - Electricity

02

H

H02H 3/087 (2006.01) H03K 17/082 (2006.01) H02H 3/02 (2006.01)

Patent

CA 2201379

A power cut-off device comprises first and second electronic switching devices (FETs T2 and T1) which are cross-coupled so that when one switching device is on the other is off and vice versa, and a load (11) to be protected is connectable in series with the first switching device (FET T2). If the current through the first switching device (FET T2) exceeds a certain value, caused for example by a short circuit at the load, the second switching device (FET T1) is turned on to turn the first switching device off.

Dispositif de coupure de courant comportant un premier et un second dispositif de commutation électronique (transistors à effet de champ (FET) T2 et T1) couplés transversalement de sorte que lorsque l'un des dispositifs de commutation électronique est fermé, l'autre est ouvert, et inversement, et une charge (11) à protéger peut être raccordée en série au premier dispositif de commutation (FET T2). Au cas où le courant parcourant le premier dispositif de commutation (FET T2) dépasserait une valeur donnée, par exemple à cause d'un court-circuit au niveau de la charge, le second dispositif de commutation (FET T1) se ferme afin d'ouvrir le premier dispositif de commutation.

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