Cam-controlled electromechanical rotary power inverter
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United States of America Patent
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May 7, 2013
Grant Date -
Apr 12, 2012
app pub date -
Oct 12, 2010
filing date -
Oct 12, 2010
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The cam-controlled electromechanical rotary power inverter converts a plurality of DC source voltages to an AC power output by an electromechanical mechanism that includes a rotating assembly of cams intermittently contacting a series of brushes connected to the DC source voltages to sequentially add the DC voltages and then sequentially subtract the DC voltages over 360° of rotation of the cam assembly. In this manner, the inverter provides multilevel, e.g., seven discrete voltage levels, which are distributed as output sequentially in an additive manner and then a subtractive mariner to generate nearly sinusoidal voltages. Repeating sequences of brushes and cams over three 120° intervals allows for 3-phase AC voltage output from the inverter.
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