Current sensor apparatus and method for uninterruptible...

Details Current sensor apparatus and method for uninterruptible... Current sensor apparatus and method for uninterruptible...

2006-12-19

2009-06-23

Paladini, Albert W (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

Reexamination Certificate

active

07550872

ABSTRACT:
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.

REFERENCES:
patent: 4980812 (1990-12-01), Johnson, Jr. et al.
patent: 6169669 (2001-01-01), Choudhury
patent: 6583519 (2003-06-01), Aberle et al.
patent: 2002/0071292 (2002-06-01), Aihara et al.
patent: 2004/0084967 (2004-05-01), Nielsen
patent: WO 01/11763 (2001-02-01), None

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