Current sensor apparatus and method for uninterruptible...

H - Electricity – 02 – J

Patent

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H02J 9/06 (2006.01)

Patent

CA 2672465

A UPS has a current sensor for controlling operation of a UPS main power circuit positioned in series with the AC supply voltage so as to measure the net current used by each component connected to the UPS main power circuit. Feedback from the current sensor received by a control circuit is used to achieve unity power factor operation with the UPS. The current sensor location and operation is adaptable to both single phase and three phase operation.

Selon l'invention, une UPS comprend un capteur de courant, qui contrôle le fonctionnement d'un circuit d'alimentation principale de l'UPS positionné en série avec la tension d'alimentation en courant alternatif, de façon à mesurer le courant net utilisé par chaque élément raccordé audit circuit. Une rétroaction reçue du capteur de courant par un circuit de commande est utilisée pour assurer un fonctionnement à facteur de puissance unitaire avec l'UPS. L'emplacement et le fonctionnement du capteur de courant sont adaptables tant pour un fonctionnement monophasé que pour un fonctionnement triphasé.

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