Semiconductor power converter
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United States of America Patent
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Apr 5, 2011
Grant Date -
Mar 5, 2009
app pub date -
Aug 18, 2008
filing date -
Aug 27, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A semiconductor power converter includes a power converter for converting direct current to three-phase alternating current or vice versa; a means for detecting a current in an alternating current side of the power converter; a means for providing a current reference in the alternating current side of the power converter; a current controller for calculating a voltage reference in the alternating current side of the power converter to match the current reference and a value of the detected current; and a pulse width modulation means for controlling the power converter through pulse width modulation based on the voltage reference, wherein the current reference is used in place of the value of the detected current for at least one phase current among three phase currents in the alternating current side.
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