Uninterruptible power supply systems and methods for communication systems
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United States of America Patent
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Oct 24, 2017
Issued Date -
N/A
app pub date -
May 12, 2015
filing date -
Oct 18, 2010
priority date (Note) -
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Abstract
An uninterruptible power supply to be connected between an AC line and a load has a battery system, an inverter, a transformer, and a controller. The battery system stores battery power. The inverter is operatively connected to the battery system. The transformer comprises a primary winding adapted to be connected to the AC line, a load winding adapted to be connected to the load, and an inverter winding operatively connected to the inverter. The controller controls the inverter to operate in a first mode in which the inverter supplies power to the battery system, a second mode in which the inverter supplies power to the load winding using battery power stored in the battery system, and a third mode in which the inverter supplies power to the primary winding using battery power stored in the battery system.
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