Converter device comprising at least five DC voltage levels and uninterruptible power supply provided with said device
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United States of America Patent
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Jul 16, 2013
Grant Date -
May 12, 2011
app pub date -
Oct 20, 2010
filing date -
Nov 6, 2009
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Abstract
A multi-level converter to at least convert an AC switched voltage available on a switched voltage point into at least five DC voltage levels available on positive and negative DC voltage lines, said converter comprising two separate switching units to convert respectively positive and negative half-waves of said switched voltage, connected to the DC voltage lines respectively presenting positive and negative DC voltage levels, and wherein each switching unit comprises a switching point connected to said switched voltage point by means of change-over means.
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