ELECTRICAL ENERGY SUPPLY SYSTEM
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United States of America Patent
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Issued Date -
Aug 28, 2014
app pub date -
Oct 15, 2012
filing date -
Oct 18, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electrical energy supply system (12) comprises an input rectifier (14) for rectifying an input voltage into a DC voltage, an inverter (18) with semiconductor switches for generating an AC output voltage from the DC voltage and a controller (24) for switching the switches of the inverter (18). The inverter (18) is adapted for generating a 5-level AC output voltage. The controller (18) is adapted to switch the semiconductor switches such that an asymmetric pulse shape is generated from the inverter (18) in a half cycle of the AC output voltage.
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