Systems and methods for improving efficiency of a neutral-point-clamped inverter
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United States of America Patent
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Sep 15, 2020
Grant Date -
Mar 23, 2017
app pub date -
Mar 3, 2014
filing date -
Mar 3, 2014
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Abstract
An uninterruptible power system described herein includes a first input and a second input and an AC output. The uninterruptible power system also includes power circuitry coupled to the first input, the second input, and the AC output, the power circuitry including an inverter having a first pair of switching elements including a first switching element and a second switching element and a second pair of switching elements including a third switching element and a fourth switching element, wherein the first switching element, the second switching element, the third switching element and the fourth switching element have an identical voltage rating; and a controller coupled to the second pair of switching elements and configured to control the third switching element and the fourth switching element to prevent occurrence of an overvoltage condition.
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