Method and apparatus for battery-backed power supply and battery charging
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United States of America Patent
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Aug 24, 2010
Grant Date -
Apr 1, 2010
app pub date -
Dec 4, 2009
filing date -
Jan 30, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
Apparatuses, systems, and methods for providing battery-backed power to movable partitions are disclosed. A power converter generates a DC output from an AC input. The DC output may be selectively decoupled from an enabled DC output such that the DC output can be monitored for acceptable operation in-situ. The enabled DC output may be selectively coupled to a battery output terminal. A charge current may be sensed between the enabled DC output and the battery output to control charging of the battery with a pulse-width modulation operation by controlling the selective coupling of the enabled DC output to the battery output. The enabled DC output and the battery output are coupled in a logical-OR configuration to generate a supply output providing current from the enabled DC output and the battery. The supply output may drive a movable partition controller and a motor configured for opening and closing a movable partition.
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