Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Henning Roar Nielsen0
Date of Patent
October 24, 2006
0Patent Application Number
110195070
Date Filed
December 21, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention relates to a high efficiency three-level inverter apparatus containing both bipolar and field effect transistors. An embodiment of a modified control scheme is also presented whereby transistors are modulated differently for each quadrant of output voltage-current phase. This embodiment of a modified control scheme allows efficient switching of field effect transistors without additional freewheeling and series diodes.
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