Uninterruptible power supply system for avoiding arcing generation and cabinet thereof
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United States of America Patent
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Nov 18, 2014
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N/A
app pub date -
Mar 4, 2011
filing date -
Mar 29, 2010
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Abstract
An uninterruptible power supply includes plural power units, plural output capacitor units, a capacitor energy bleeder circuit, plural output units, a detecting unit and a controlling unit. The capacitor energy bleeder circuit is electrically connected to the plural output capacitor units. The plural output units are connected with each other in parallel to issue the output voltage to the power output side and avoid returning electrical energy from the power output side back to the capacitor energy bleeder circuit. The detecting unit is used for detecting operating statuses of the plural power units. The controlling unit is used for controlling operations of the plural power units and the capacitor energy bleeder circuit. In response to a to-be-interrupted status of a specified power unit, the controlling unit controls the capacitor energy bleeder circuit to discharge electrical energy of the output capacitor unit corresponding to the specified power unit.
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