Polyphase voltage converter control method
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United States of America Patent
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Feb 1, 2011
Grant Date -
Oct 30, 2008
app pub date -
Dec 13, 2006
filing date -
Dec 22, 2005
priority date (Note) -
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Abstract
A method for driving a power bridge (1) which is used for controlling a multiphase electric load (3), connectable to said electric load (3) via several arms and drivable by switching functions which determine free wheel controlling vectors and are active for controlling the load. The inventive method consists in selecting a first switching function production method which produces a reduced number of combinations of switching functions corresponding to the free wheel control vectors or a second switching function production method which produces combinations of switching functions corresponding only to the active control vectors, wherein said method are defined according to a given reference voltage vector and in applying said selected for producing a sequence of control vectors from the produced combinations of switching functions.
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